Bump knpuniversity/oauth2-client-bundle from 2.15.0 to 2.16.0

Bumps [knpuniversity/oauth2-client-bundle](https://github.com/knpuniversity/oauth2-client-bundle) from 2.15.0 to 2.16.0.
- [Release notes](https://github.com/knpuniversity/oauth2-client-bundle/releases)
- [Changelog](https://github.com/knpuniversity/oauth2-client-bundle/blob/master/CHANGELOG.md)
- [Commits](knpuniversity/oauth2-client-bundle@v2.15.0...v2.16.0)

---
updated-dependencies:
- dependency-name: knpuniversity/oauth2-client-bundle
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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