Merge branch '6.3' into 6.4

* 6.3:
  fix typo
  CS fix
  [Serializer] Keep stack trace for enum value denormalizer error
  add the MailPace transport to the UnsupportedSchemeException
  [Serializer] Fix partial denormalization with missing constructor arguments
  [Serializer] Moves dummy to fixtures folder
  [HttpKernel] Don't validate partially denormalized object

Tests/Store/MongoDbStoreTest.php

@@ -35,7 +35,7 @@ class MongoDbStoreTest extends AbstractStoreTestCase
 {
     use ExpiringStoreTestTrait;
 
-    public static function setupBeforeClass(): void
+    public static function setUpBeforeClass(): void
     {
         $manager = self::getMongoManager();
         try {