Merge branch '5.4' into 6.3

* 5.4:
  fix typo
  CS fix
  [Serializer] Keep stack trace for enum value denormalizer error
  [Serializer] Fix partial denormalization with missing constructor arguments
  [Serializer] Moves dummy to fixtures folder

Tests/DeprecationErrorHandler/DeprecationTest.php

@@ -265,7 +265,7 @@ private static function removeDir($dir)
         rmdir($dir);
     }
 
-    public static function setupBeforeClass(): void
+    public static function setUpBeforeClass(): void
     {
         foreach (get_declared_classes() as $class) {
             if ('C' === $class[0] && 0 === strpos($class, 'ComposerAutoloaderInit')) {