* 5.4:
  [FrameworkBundle] fixes #54402: Suppress PHP warning when is_readable() tries to access dirs outside of open_basedir restrictions
  return null when message with name is not set
  use local PHP web server to test HTTP stream wrappers
  Bump Symfony version to 5.4.39
  Update VERSION for 5.4.38
  Update CONTRIBUTORS for 5.4.38
  Update CHANGELOG for 5.4.38

…dumpFile` (alexandre-daubois)

This PR was merged into the 5.4 branch.

Discussion
----------

[Filesystem] Strengthen the check of file permissions in `dumpFile`

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #54444
| License       | MIT

`fileperms()` can fail and return `false`, I think we should strengthen the checks on its return value when using it to avoid undesirable behavior.

Commits
-------

0c17a4e327 [Filesystem] Strengthen the check of file permissions in `dumpFile`

* 5.4:
  fix syntax for PHP 7.2
  [Security] Fix Danish translations
  [DomCrawler] Encode html entities only if nessecary
  [Serializer] Ignore when using #[Ignore] on a non-accessor
  [Filesystem] Strengthen the check of file permissions in `dumpFile`
  [Serializer] Fix XML scalar to object denormalization
  [HttpClient][EventSourceHttpClient] Fix consuming SSEs with \r\n separator

* 5.4:
  Fix CI
  Bump ext-redis in CI on PHP >= 8.4
  Adjust pretty name of closures on PHP 8.4
  implement NodeVisitorInterface instead of extending AbstractNodeVisitor

* 5.4:
  Auto-close PRs on subtree-splits
  review German translation