Bump symfony/filesystem from 4.4.11 to 4.4.12

Bumps [symfony/filesystem](https://github.com/symfony/filesystem) from 4.4.11 to 4.4.12.
- [Release notes](https://github.com/symfony/filesystem/releases)
- [Changelog](https://github.com/symfony/filesystem/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/filesystem/compare/v4.4.11...v4.4.12

)

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