See also: thekompanee/fuubar#111

* Add request pool to improve delivery performance

Fix #7909

* Ensure connection is closed when exception interrupts execution

* Remove Timeout#timeout from socket connection

* Fix infinite retrial loop on HTTP::ConnectionError

* Close sockets on failure, reduce idle time to 90 seconds

* Add MAX_REQUEST_POOL_SIZE option to limit concurrent connections to the same server

* Use a shared pool size, 512 by default, to stay below open file limit

* Add some tests

* Add more tests

* Reduce MAX_IDLE_TIME from 90 to 30 seconds, reap every 30 seconds

* Use a shared pool that returns preferred connection but re-purposes other ones when needed

* Fix wrong connection being returned on subsequent calls within the same thread

* Reduce mutex calls on flushes from 2 to 1 and add test for reaping

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.71.0 to 0.72.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.71.0...v0.72.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.24.0 to 3.25.0.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.24.0...3.25.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [memory_profiler](https://github.com/SamSaffron/memory_profiler) from 0.9.13 to 0.9.14.
- [Release notes](https://github.com/SamSaffron/memory_profiler/releases)
- [Changelog](https://github.com/SamSaffron/memory_profiler/blob/master/CHANGELOG.md)
- [Commits](https://github.com/SamSaffron/memory_profiler/compare/v0.9.13...v0.9.14)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [bullet](https://github.com/flyerhzm/bullet) from 6.0.0 to 6.0.1.
- [Release notes](https://github.com/flyerhzm/bullet/releases)
- [Changelog](https://github.com/flyerhzm/bullet/blob/master/CHANGELOG.md)
- [Commits](https://github.com/flyerhzm/bullet/compare/6.0.0...6.0.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [derailed_benchmarks](https://github.com/schneems/derailed_benchmarks) from 1.3.5 to 1.3.6.
- [Release notes](https://github.com/schneems/derailed_benchmarks/releases)
- [Changelog](https://github.com/schneems/derailed_benchmarks/blob/master/CHANGELOG.md)
- [Commits](https://github.com/schneems/derailed_benchmarks/compare/v1.3.5...v1.3.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.42.0 to 1.43.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/compare/v1.42.0...v1.43.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 2.29.0 to 2.29.1.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Commits](https://github.com/grosser/parallel_tests/compare/v2.29.0...v2.29.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [dotenv-rails](https://github.com/bkeepers/dotenv) from 2.7.2 to 2.7.4.
- [Release notes](https://github.com/bkeepers/dotenv/releases)
- [Changelog](https://github.com/bkeepers/dotenv/blob/master/Changelog.md)
- [Commits](https://github.com/bkeepers/dotenv/compare/v2.7.2...v2.7.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.22.0 to 3.24.0.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.22.0...3.24.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps ox from 2.10.1 to 2.11.0.

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [lograge](https://github.com/roidrage/lograge) from 0.11.1 to 0.11.2.
- [Release notes](https://github.com/roidrage/lograge/releases)
- [Changelog](https://github.com/roidrage/lograge/blob/master/CHANGELOG.md)
- [Commits](https://github.com/roidrage/lograge/compare/v0.11.1...v0.11.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [webmock](https://github.com/bblimke/webmock) from 3.5.1 to 3.6.0.
- [Release notes](https://github.com/bblimke/webmock/releases)
- [Changelog](https://github.com/bblimke/webmock/blob/master/CHANGELOG.md)
- [Commits](https://github.com/bblimke/webmock/compare/v3.5.1...v3.6.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [httplog](https://github.com/trusche/httplog) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/trusche/httplog/releases)
- [Changelog](https://github.com/trusche/httplog/blob/master/CHANGELOG.md)
- [Commits](https://github.com/trusche/httplog/compare/v1.3.0...v1.3.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [pghero](https://github.com/ankane/pghero) from 2.2.0 to 2.2.1.
- [Release notes](https://github.com/ankane/pghero/releases)
- [Changelog](https://github.com/ankane/pghero/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ankane/pghero/compare/v2.2.0...v2.2.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [rubocop-rails](https://github.com/rubocop-hq/rubocop-rails) from 2.0.0 to 2.0.1.
- [Release notes](https://github.com/rubocop-hq/rubocop-rails/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-rails/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop-rails/compare/v2.0.0...v2.0.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.41.0 to 1.42.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/compare/v1.41.0...v1.42.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Revert "Revert #10957 (rubocop-rails) which is incompatible with CodeClimate (#10965)"

This reverts commit 121d19d7fa.

* Disable Rails/HelperInstanceVariable

Bumps [webpacker](https://github.com/rails/webpacker) from 4.0.6 to 4.0.7.
- [Release notes](https://github.com/rails/webpacker/releases)
- [Changelog](https://github.com/rails/webpacker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rails/webpacker/compare/v4.0.6...v4.0.7)

Bumps [fuubar](https://github.com/thekompanee/fuubar) from 2.3.2 to 2.4.0.
- [Release notes](https://github.com/thekompanee/fuubar/releases)
- [Changelog](https://github.com/thekompanee/fuubar/blob/master/CHANGELOG.md)
- [Commits](https://github.com/thekompanee/fuubar/compare/releases/v2.3.2...releases/v2.4.0)

Bumps [webpacker](https://github.com/rails/webpacker) from 4.0.5 to 4.0.6.
- [Release notes](https://github.com/rails/webpacker/releases)
- [Changelog](https://github.com/rails/webpacker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rails/webpacker/compare/v4.0.5...v4.0.6)

Bumps [webpacker](https://github.com/rails/webpacker) from 4.0.4 to 4.0.5.
- [Release notes](https://github.com/rails/webpacker/releases)
- [Changelog](https://github.com/rails/webpacker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rails/webpacker/compare/v4.0.4...v4.0.5)

Bumps [redis](https://github.com/redis/redis-rb) from 4.1.1 to 4.1.2.
- [Release notes](https://github.com/redis/redis-rb/releases)
- [Changelog](https://github.com/redis/redis-rb/blob/master/CHANGELOG.md)
- [Commits](https://github.com/redis/redis-rb/compare/v4.1.1...v4.1.2)

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.70.0 to 0.71.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.70.0...v0.71.0)

Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.40.0 to 1.41.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/compare/v1.40.0...v1.41.0)

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.21.0 to 3.22.0.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.21.0...3.22.0)

Bumps [strong_migrations](https://github.com/ankane/strong_migrations) from 0.3.1 to 0.4.0.
- [Release notes](https://github.com/ankane/strong_migrations/releases)
- [Changelog](https://github.com/ankane/strong_migrations/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ankane/strong_migrations/compare/v0.3.1...v0.4.0)

Bumps [webpacker](https://github.com/rails/webpacker) from 4.0.2 to 4.0.4.
- [Release notes](https://github.com/rails/webpacker/releases)
- [Changelog](https://github.com/rails/webpacker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rails/webpacker/compare/v4.0.2...v4.0.4)

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.20.2 to 3.21.0.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.20.2...3.21.0)

Bumps [tty-prompt](https://github.com/piotrmurach/tty-prompt) from 0.18.1 to 0.19.0.
- [Release notes](https://github.com/piotrmurach/tty-prompt/releases)
- [Changelog](https://github.com/piotrmurach/tty-prompt/blob/master/CHANGELOG.md)
- [Commits](https://github.com/piotrmurach/tty-prompt/compare/v0.18.1...v0.19.0)

Bumps [ox](https://github.com/ohler55/ox) from 2.10.0 to 2.10.1.
- [Release notes](https://github.com/ohler55/ox/releases)
- [Changelog](https://github.com/ohler55/ox/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ohler55/ox/compare/v2.10.0...v2.10.1)

Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.39.0 to 1.40.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/compare/v1.39.0...v1.40.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.69.0 to 0.70.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.69.0...v0.70.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [httplog](https://github.com/trusche/httplog) from 1.2.2 to 1.3.0.
- [Release notes](https://github.com/trusche/httplog/releases)
- [Changelog](https://github.com/trusche/httplog/blob/master/CHANGELOG.md)
- [Commits](https://github.com/trusche/httplog/commits/v1.3.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [lograge](https://github.com/roidrage/lograge) from 0.11.0 to 0.11.1.
- [Release notes](https://github.com/roidrage/lograge/releases)
- [Changelog](https://github.com/roidrage/lograge/blob/master/CHANGELOG.md)
- [Commits](https://github.com/roidrage/lograge/compare/v0.11.0...v0.11.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.20.0 to 3.20.2.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.20.0...3.20.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.38.0 to 1.39.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/compare/v1.38.0...v1.39.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.19.1 to 3.20.0.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.19.1...3.20.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [aws-sdk-s3](https://github.com/aws/aws-sdk-ruby) from 1.36.1 to 1.38.0.
- [Release notes](https://github.com/aws/aws-sdk-ruby/releases)
- [Changelog](https://github.com/aws/aws-sdk-ruby/blob/master/gems/aws-sdk-s3/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-ruby/compare/v1.36.1...v1.38.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [capybara](https://github.com/teamcapybara/capybara) from 3.18.0 to 3.19.1.
- [Release notes](https://github.com/teamcapybara/capybara/releases)
- [Changelog](https://github.com/teamcapybara/capybara/blob/master/History.md)
- [Commits](https://github.com/teamcapybara/capybara/compare/3.18.0...3.19.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [brakeman](https://github.com/presidentbeef/brakeman) from 4.5.0 to 4.5.1.
- [Release notes](https://github.com/presidentbeef/brakeman/releases)
- [Changelog](https://github.com/presidentbeef/brakeman/blob/master/CHANGES.md)
- [Commits](https://github.com/presidentbeef/brakeman/compare/v4.5.0...v4.5.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.68.1 to 0.69.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.68.1...v0.69.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [redis](https://github.com/redis/redis-rb) from 4.1.0 to 4.1.1.
- [Release notes](https://github.com/redis/redis-rb/releases)
- [Changelog](https://github.com/redis/redis-rb/blob/master/CHANGELOG.md)
- [Commits](https://github.com/redis/redis-rb/compare/v4.1.0...v4.1.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 2.28.0 to 2.29.0.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Commits](https://github.com/grosser/parallel_tests/compare/v2.28.0...v2.29.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* Bump rack-attack from 5.4.2 to 6.0.0

Bumps [rack-attack](https://github.com/kickstarter/rack-attack) from 5.4.2 to 6.0.0.
- [Release notes](https://github.com/kickstarter/rack-attack/releases)
- [Changelog](https://github.com/kickstarter/rack-attack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kickstarter/rack-attack/compare/v5.4.2...v6.0.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* fix payload[:request]