Update ruby-grape-danger requirement from ~> 0.1.1 to ~> 0.2.0 (#824)
Update ruby-grape-danger requirement from ~> 0.1.1 to ~> 0.2.0 (#824)

Updates the requirements on [ruby-grape-danger](https://github.com/ruby-grape/danger) to permit the latest version.
- [Release notes](https://github.com/ruby-grape/danger/releases)
- [Changelog](https://github.com/ruby-grape/danger/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ruby-grape/danger/compare/v0.1.1...v0.2.0)

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

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
Co-authored-by: peter scholz <e255681030e4edf794d83bec236f7a9864e36431@gmail.com>
ruby-grape/grape-swagger,LeFnord/grape-swagger