Update rubocop-minitest requirement from 0.21.1 to 0.22.2 (#176)
Update rubocop-minitest requirement from 0.21.1 to 0.22.2 (#176)

Updates the requirements on [rubocop-minitest](https://github.com/rubocop/rubocop-minitest) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop-minitest/releases)
- [Changelog](https://github.com/rubocop/rubocop-minitest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop-minitest/compare/v0.21.1...v0.22.2)

---
updated-dependencies:
- dependency-name: rubocop-minitest
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
mattbrictson/bundleup,mattbrictson/bundleup