Bump minitest-spec-rails from 5.4.0 to 5.5.0
Bump minitest-spec-rails from 5.4.0 to 5.5.0

Bumps [minitest-spec-rails](https://github.com/metaskills/minitest-spec-rails) from 5.4.0 to 5.5.0.
- [Release notes](https://github.com/metaskills/minitest-spec-rails/releases)
- [Changelog](https://github.com/metaskills/minitest-spec-rails/blob/master/CHANGELOG.md)
- [Commits](https://github.com/metaskills/minitest-spec-rails/compare/v5.4.0...v5.5.0)

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