Build(deps): Bump symfony/string from 6.4.3 to 6.4.4 (#2676)

Bumps [symfony/string](https://github.com/symfony/string) from 6.4.3 to 6.4.4.
- [Release notes](https://github.com/symfony/string/releases)
- [Changelog](https://github.com/symfony/string/blob/7.0/CHANGELOG.md)
- [Commits](symfony/string@v6.4.3...v6.4.4)

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

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