Merge branch '4.3' into 4.4

* 4.3:
  [#12835] add use statement
  Update custom-transport.rst
  Update injection_types.rst
  Update Valid.rst

Author: xabbuh

messenger/custom-transport.rst

@@ -12,12 +12,13 @@ DSN. You will need a transport factory::
 
     use Symfony\Component\Messenger\Transport\Receiver\ReceiverInterface;
     use Symfony\Component\Messenger\Transport\Sender\SenderInterface;
+    use Symfony\Component\Messenger\Transport\Serialization\SerializerInterface;
     use Symfony\Component\Messenger\Transport\TransportFactoryInterface;
     use Symfony\Component\Messenger\Transport\TransportInterface;
 
     class YourTransportFactory implements TransportFactoryInterface
     {
-        public function createTransport(string $dsn, array $options): TransportInterface
+        public function createTransport(string $dsn, array $options, SerializerInterface $serializer): TransportInterface
         {
             return new YourTransport(/* ... */);
         }

reference/constraints/Valid.rst

@@ -155,7 +155,7 @@ stores an ``Address`` instance in the ``$address`` property::
             {
                 $metadata->addPropertyConstraint('street', new Assert\NotBlank());
                 $metadata->addPropertyConstraint('zipCode', new Assert\NotBlank());
-                $metadata->addPropertyConstraint('zipCode', new Assert\Length(["max" => 5]));
+                $metadata->addPropertyConstraint('zipCode', new Assert\Length(['max' => 5]));
             }
         }
 
@@ -170,7 +170,7 @@ stores an ``Address`` instance in the ``$address`` property::
             public static function loadValidatorMetadata(ClassMetadata $metadata)
             {
                 $metadata->addPropertyConstraint('firstName', new Assert\NotBlank());
-                $metadata->addPropertyConstraint('firstName', new Assert\Length(["min" => 4]));
+                $metadata->addPropertyConstraint('firstName', new Assert\Length(['min' => 4]));
                 $metadata->addPropertyConstraint('lastName', new Assert\NotBlank());
             }
         }

service_container/injection_types.rst

@@ -353,7 +353,7 @@ Another possibility is setting public fields of the class directly::
         return function(ContainerConfigurator $configurator) {
             $services = $configurator->services();
 
-            $services->set('app.newsletter_manager, NewsletterManager::class)
+            $services->set('app.newsletter_manager', NewsletterManager::class)
                 ->property('mailer', ref('mailer'));
         };