Merge branch '6.4' into 7.0

* 6.4:
  [Process] remove fixing of legacy bug, when PTS functionality is enabled
  DX: re-apply self_accessor and phpdoc_types_order by PHP CS Fixer
  [HttpClient] Psr18Client: parse HTTP Reason Phrase for Response
  fix test
  Fix wrong yaml parse null test
  [AssetMapper] Fixing merge from multiple PR's
  Bump Symfony version to 5.4.31
  Update VERSION for 5.4.30
  Update CONTRIBUTORS for 5.4.30
  Update CHANGELOG for 5.4.30
  Fix wrong merge
  [AssetMapper] Allowing circular references in JavaScriptImportPathCompiler
  [AssetMapper] Fix file deleting errors & remove nullable MappedAsset on JS import
  [Lock] Fix mongodb extension requirement in tests
  [Yaml] Remove dead code
  [AssetMapper] Fix in-file imports to resolve via filesystem
  throw better exception in TranslatableNormalizer, add to changelog
  Passing null to Inline::parse is not allowed
  Fix passing null to trim()

Author: nicolas-grekas

Definition.php

@@ -781,7 +781,7 @@ public function setBindings(array $bindings): static
      *
      * @return $this
      */
-    public function addError(string|\Closure|Definition $error): static
+    public function addError(string|\Closure|self $error): static
     {
         if ($error instanceof self) {
             $this->errors = array_merge($this->errors, $error->errors);