Bump knpuniversity/oauth2-client-bundle from 2.7.0 to 2.8.0 (#441)

Bumps [knpuniversity/oauth2-client-bundle](https://github.com/knpuniversity/oauth2-client-bundle) from 2.7.0 to 2.8.0.
- [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@v2.7.0...v2.8.0)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>