Merge branch '6.4' into 7.2

* 6.4:
  Remove unneeded use statements
  Redundant assignment to promoted property
  Revert "[Messenger] Add call to `gc_collect_cycles()` after each message is handled"

Author: fabpot

Tests/ArgumentResolver/EntityValueResolverTest.php

@@ -494,7 +494,6 @@ private function createRegistry(?ObjectManager $manager = null): ManagerRegistry
             $registry->method('getManager')->willReturn($manager);
         }
 
-
         return $registry;
     }
 }

Tests/Validator/Constraints/UniqueEntityValidatorTest.php

@@ -14,7 +14,6 @@
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\DBAL\Types\Type;
 use Doctrine\ORM\EntityRepository;
-use Doctrine\ORM\Mapping\ClassMetadataInfo;
 use Doctrine\ORM\Tools\SchemaTool;
 use Doctrine\Persistence\ManagerRegistry;
 use Doctrine\Persistence\ObjectManager;
@@ -32,7 +31,6 @@
 use Symfony\Bridge\Doctrine\Tests\Fixtures\Employee;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\HireAnEmployee;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\Person;
-use Symfony\Bridge\Doctrine\Tests\Fixtures\SingleIntIdEntityRepository;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\SingleIntIdEntity;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\SingleIntIdNoToStringEntity;
 use Symfony\Bridge\Doctrine\Tests\Fixtures\SingleIntIdStringWrapperNameEntity;