Bump symfony/var-dumper from 6.1.6 to 6.4.4

Bumps [symfony/var-dumper](https://github.com/symfony/var-dumper) from 6.1.6 to 6.4.4.
- [Release notes](https://github.com/symfony/var-dumper/releases)
- [Changelog](https://github.com/symfony/var-dumper/blob/7.2/CHANGELOG.md)
- [Commits](symfony/var-dumper@v6.1.6...v6.4.4)

---
updated-dependencies:
- dependency-name: symfony/var-dumper
  dependency-type: direct:development
...

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