Merge branch '6.4' into 7.0

* 6.4:
  Fix implicitly-required parameters
  minor #53524 [Messenger] [AmazonSqs] Allow `async-aws/sqs` version 2 (smoench)
  Fix bad merge
  List CS fix in .git-blame-ignore-revs
  Fix implicitly-required parameters
  List CS fix in .git-blame-ignore-revs
  Apply php-cs-fixer fix --rules nullable_type_declaration_for_default_null_value
  [Messenger][AmazonSqs] Allow async-aws/sqs version 2

Author: nicolas-grekas

Tests/Transport/BeanstalkdTransportTest.php

@@ -50,7 +50,7 @@ public function testReceivesMessages()
         $this->assertSame($decodedMessage, $envelopes[0]->getMessage());
     }
 
-    private function getTransport(SerializerInterface $serializer = null, Connection $connection = null): BeanstalkdTransport
+    private function getTransport(?SerializerInterface $serializer = null, ?Connection $connection = null): BeanstalkdTransport
     {
         $serializer ??= $this->createMock(SerializerInterface::class);
         $connection ??= $this->createMock(Connection::class);

Transport/BeanstalkdReceiver.php

@@ -27,7 +27,7 @@ class BeanstalkdReceiver implements ReceiverInterface, MessageCountAwareInterfac
     private Connection $connection;
     private SerializerInterface $serializer;
 
-    public function __construct(Connection $connection, SerializerInterface $serializer = null)
+    public function __construct(Connection $connection, ?SerializerInterface $serializer = null)
     {
         $this->connection = $connection;
         $this->serializer = $serializer ?? new PhpSerializer();

Transport/BeanstalkdSender.php

@@ -25,7 +25,7 @@ class BeanstalkdSender implements SenderInterface
     private Connection $connection;
     private SerializerInterface $serializer;
 
-    public function __construct(Connection $connection, SerializerInterface $serializer = null)
+    public function __construct(Connection $connection, ?SerializerInterface $serializer = null)
     {
         $this->connection = $connection;
         $this->serializer = $serializer ?? new PhpSerializer();

Transport/BeanstalkdTransport.php

@@ -27,7 +27,7 @@ class BeanstalkdTransport implements TransportInterface, MessageCountAwareInterf
     private BeanstalkdReceiver $receiver;
     private BeanstalkdSender $sender;
 
-    public function __construct(Connection $connection, SerializerInterface $serializer = null)
+    public function __construct(Connection $connection, ?SerializerInterface $serializer = null)
     {
         $this->connection = $connection;
         $this->serializer = $serializer ?? new PhpSerializer();