Bump symfony/cache from 5.4.19 to 5.4.21

Bumps [symfony/cache](https://github.com/symfony/cache) from 5.4.19 to 5.4.21.
- [Release notes](https://github.com/symfony/cache/releases)
- [Changelog](https://github.com/symfony/cache/blob/6.2/CHANGELOG.md)
- [Commits](symfony/cache@v5.4.19...v5.4.21)

---
updated-dependencies:
- dependency-name: symfony/cache
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]