Bump symfony/yaml from 7.1.1 to 7.1.6

Bumps [symfony/yaml](https://github.com/symfony/yaml) from 7.1.1 to 7.1.6.
- [Release notes](https://github.com/symfony/yaml/releases)
- [Changelog](https://github.com/symfony/yaml/blob/7.1/CHANGELOG.md)
- [Commits](symfony/yaml@v7.1.1...v7.1.6)

---
updated-dependencies:
- dependency-name: symfony/yaml
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]