* 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]

Fix #7095