Update doorkeeper requirement from ~> 5.2.0 to >= 5.2, < 5.4
Update doorkeeper requirement from ~> 5.2.0 to >= 5.2, < 5.4

Updates the requirements on [doorkeeper](https://github.com/doorkeeper-gem/doorkeeper) to permit the latest version.
- [Release notes](https://github.com/doorkeeper-gem/doorkeeper/releases)
- [Changelog](https://github.com/doorkeeper-gem/doorkeeper/blob/master/CHANGELOG.md)
- [Commits](https://github.com/doorkeeper-gem/doorkeeper/compare/v5.2.0...v.5.3.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
playon/doorkeeper-openid_connect,doorkeeper-gem/doorkeeper-openid_connect,playon/doorkeeper-openid_connect,doorkeeper-gem/doorkeeper-openid_connect,doorkeeper-gem/doorkeeper-openid_connect,doorkeeper-gem/doorkeeper-openid_connect