Bump spring-security-oauth2 in /gradle
Bump spring-security-oauth2 in /gradle

Bumps [spring-security-oauth2](https://github.com/SpringSource/spring-security-oauth) from 2.5.0.RELEASE to 2.5.1.RELEASE.
- [Release notes](https://github.com/SpringSource/spring-security-oauth/releases)
- [Commits](https://github.com/SpringSource/spring-security-oauth/compare/2.5.0.RELEASE...2.5.1.RELEASE)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
otto-de/edison-microservice,otto-de/edison-microservice,otto-de/edison-microservice,otto-de/edison-microservice