Bump rubocop-rails from 2.7.1 to 2.8.0 (#1569)
Bump rubocop-rails from 2.7.1 to 2.8.0 (#1569)

Bumps [rubocop-rails](https://github.com/rubocop-hq/rubocop-rails) from 2.7.1 to 2.8.0.
- [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/v2.7.1...v2.8.0)

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Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
ledermann/docker-rails,ledermann/docker-rails,ledermann/docker-rails,ledermann/docker-rails