Merge branch '5.4' into 6.4

* 5.4:
  [Validator] Improve `zh_TW` translation
  [Security] Improve translation for `zh_TW`
  Bump Symfony version to 5.4.44
  Update VERSION for 5.4.43
  Update CONTRIBUTORS for 5.4.43
  Update CHANGELOG for 5.4.43

Author: derrabus