composer(deps): bump symfony/string from 7.1.4 to 7.1.5 (#1845)

Bumps [symfony/string](https://github.com/symfony/string) from 7.1.4 to 7.1.5.
- [Release notes](https://github.com/symfony/string/releases)
- [Changelog](https://github.com/symfony/string/blob/7.1/CHANGELOG.md)
- [Commits](symfony/string@v7.1.4...v7.1.5)

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

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