Bump symfony/http-foundation from 3.3.2 to 3.4.43

Bumps [symfony/http-foundation](https://github.com/symfony/http-foundation) from 3.3.2 to 3.4.43.
- [Release notes](https://github.com/symfony/http-foundation/releases)
- [Changelog](https://github.com/symfony/http-foundation/blob/master/CHANGELOG.md)
- [Commits](symfony/http-foundation@v3.3.2...v3.4.43)

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