* Bump rubocop from 0.86.0 to 0.88.0

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.86.0 to 0.88.0.
- [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/v0.86.0...v0.88.0)

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

* Fix for latest RuboCop

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Yamagishi Kazutoshi <ykzts@desire.sh>

* Add support for special characters in Redis passwords

Fixes #13154

* Refactor

* Add support for separate Redis for cache

CACHE_REDIS_URL to allow using a different Redis server for cache
purposes, with cache-specific configuration such as key eviction

* Fix code style issues

* Set config.cache_store in application.rb

* Set config.cache_store in environments.

* fix code format.