Bump doctrine/doctrine-bundle from 2.14.0 to 2.15.1

Bumps [doctrine/doctrine-bundle](https://github.com/doctrine/DoctrineBundle) from 2.14.0 to 2.15.1.
- [Release notes](https://github.com/doctrine/DoctrineBundle/releases)
- [Commits](doctrine/DoctrineBundle@2.14.0...2.15.1)

---
updated-dependencies:
- dependency-name: doctrine/doctrine-bundle
  dependency-version: 2.15.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]