Update rubocop-ogat requirement from ~> 1.26.0 to ~> 1.27.0 (#50)
Update rubocop-ogat requirement from ~> 1.26.0 to ~> 1.27.0 (#50)

Updates the requirements on [rubocop-ogat](https://github.com/Outwood/rubocop-ogat) to permit the latest version.
- [Release notes](https://github.com/Outwood/rubocop-ogat/releases)
- [Commits](https://github.com/Outwood/rubocop-ogat/compare/v1.26.0...v1.27.0)
Outwood/ogatstyle,Outwood/ogatstyle