Bump spring-boot-gradle-plugin from 2.6.12 to 2.6.13
Bump spring-boot-gradle-plugin from 2.6.12 to 2.6.13

Bumps [spring-boot-gradle-plugin](https://github.com/spring-projects/spring-boot) from 2.6.12 to 2.6.13.
- [Release notes](https://github.com/spring-projects/spring-boot/releases)
- [Commits](https://github.com/spring-projects/spring-boot/compare/v2.6.12...v2.6.13)

---
updated-dependencies:
- dependency-name: org.springframework.boot:spring-boot-gradle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
freefair/okhttp-spring-boot