Merge branch '6.4' into 7.0

* 6.4:
  show overridden vars too
  Bump Symfony version to 6.4.8
  Update VERSION for 6.4.7
  Update CHANGELOG for 6.4.7
  Bump Symfony version to 5.4.40
  Update VERSION for 5.4.39
  Update CONTRIBUTORS for 5.4.39
  Update CHANGELOG for 5.4.39
  [FrameworkBundle] Fix indentation

Author: nicolas-grekas

DependencyInjection/FrameworkExtension.php

@@ -2178,10 +2178,9 @@ private function registerMessengerConfiguration(array $config, ContainerBuilder
                 ->setFactory([new Reference('messenger.transport_factory'), 'createTransport'])
                 ->setArguments([$transport['dsn'], $transport['options'] + ['transport_name' => $name], new Reference($serializerId)])
                 ->addTag('messenger.receiver', [
-                        'alias' => $name,
-                        'is_failure_transport' => \in_array($name, $failureTransports),
-                    ]
-                )
+                    'alias' => $name,
+                    'is_failure_transport' => \in_array($name, $failureTransports),
+                ])
             ;
             $container->setDefinition($transportId = 'messenger.transport.'.$name, $transportDefinition);
             $senderAliases[$name] = $transportId;