Update dependency symfony/filesystem to v6.4.6 (#299)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [symfony/filesystem](https://symfony.com)
([source](https://togithub.com/symfony/filesystem)) | `6.4.3` -> `6.4.6`
|
[![age](https://developer.mend.io/api/mc/badges/age/packagist/symfony%2ffilesystem/6.4.6?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
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|
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|
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|

---

### Release Notes

<details>
<summary>symfony/filesystem (symfony/filesystem)</summary>

###
[`v6.4.6`](https://togithub.com/symfony/filesystem/releases/tag/v6.4.6)

[Compare
Source](https://togithub.com/symfony/filesystem/compare/v6.4.3...v6.4.6)

**Changelog**
(symfony/filesystem@v6.4.5...v6.4.6)

- bug
[symfony/symfony#54362](https://togithub.com/symfony/symfony/issues/54362)
\[Filesystem] preserve the file modification time when mirroring
directories ([@&#8203;xabbuh](https://togithub.com/xabbuh))
- bug
[symfony/symfony#54298](https://togithub.com/symfony/symfony/issues/54298)
\[Filesystem] Fix str_contains deprecation
([@&#8203;NeilPeyssard](https://togithub.com/NeilPeyssard))

</details>

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