Bump symfony/cache from 4.3.3 to 4.3.9

Bumps [symfony/cache](https://github.com/symfony/cache) from 4.3.3 to 4.3.9.
- [Release notes](https://github.com/symfony/cache/releases)
- [Changelog](https://github.com/symfony/cache/blob/master/CHANGELOG.md)
- [Commits](symfony/cache@v4.3.3...v4.3.9)

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