Merge branch '5.4' into 6.4

* 5.4:
  [Console][PhpUnitBridge][VarDumper] Fix `NO_COLOR` empty value handling
  [Translation] Fix CSV escape char in `CsvFileLoader` on PHP >= 7.4
  [DoctrineBridge] fix messenger bus dispatch inside an active transaction
  [HttpFoundation] Add tests for uncovered sections
  treat uninitialized properties referenced by property paths as null
  properly set up constraint options
  [ErrorHandler][VarDumper] Remove PHP 8.4 deprecations
  [Core] Fix & Enhance security arabic translation.

Author: nicolas-grekas

Loader/CsvFileLoader.php

@@ -22,7 +22,7 @@ class CsvFileLoader extends FileLoader
 {
     private string $delimiter = ';';
     private string $enclosure = '"';
-    private string $escape = '\\';
+    private string $escape = '';
 
     protected function loadResource(string $resource): array
     {
@@ -55,7 +55,7 @@ protected function loadResource(string $resource): array
      *
      * @return void
      */
-    public function setCsvControl(string $delimiter = ';', string $enclosure = '"', string $escape = '\\')
+    public function setCsvControl(string $delimiter = ';', string $enclosure = '"', string $escape = '')
     {
         $this->delimiter = $delimiter;
         $this->enclosure = $enclosure;