Bump symfony/http-kernel from 5.4.14 to 5.4.20

Bumps [symfony/http-kernel](https://github.com/symfony/http-kernel) from 5.4.14 to 5.4.20.
- [Release notes](https://github.com/symfony/http-kernel/releases)
- [Changelog](https://github.com/symfony/http-kernel/blob/6.2/CHANGELOG.md)
- [Commits](symfony/http-kernel@v5.4.14...v5.4.20)

---
updated-dependencies:
- dependency-name: symfony/http-kernel
  dependency-type: indirect
...

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Author: dependabot[bot]