Merge branch '6.4' into 7.0

* 6.4:
  [DependencyInjection] Remove inaccurate `@throws` on `Container::get()`
  Add annotation -> attribute aliases

Author: nicolas-grekas

Tests/Extension/Fixtures/SerializerModelFixture.php

@@ -2,7 +2,7 @@
 
 namespace Symfony\Bridge\Twig\Tests\Extension\Fixtures;
 
-use Symfony\Component\Serializer\Annotation\Groups;
+use Symfony\Component\Serializer\Attribute\Groups;
 
 /**
  * @author Jesse Rushlow <[email protected]>