[TypeDeclaration] Add TypedPropertyFromGetRepositorySetUpRector

[TomasVotruba]

Mirrors #8120, but hooks into $this->em->getRepository() instead of container->get().

When a private test-case property is assigned via an entity manager getRepository() call inside setUp() and has a @var object type, inline that @var type into a native property type declaration.

 final class SomeTest extends TestCase
 {
-    /**
-     * @var SomeEntityRepository
-     */
-    private $someEntityRepository;
+    private SomeEntityRepository $someEntityRepository;

     protected function setUp(): void
     {
         $this->someEntityRepository = $this->em->getRepository(SomeEntity::class);
     }
 }

Registered in TypeDeclarationLevel right after TypedPropertyFromContainerGetSetUpRector and before TypedPropertyFromAssignsRector.