chore(symfony): bc layer for doctrine query extension tags

Author: soyuka

src/Symfony/Bundle/DependencyInjection/ApiPlatformExtension.php

@@ -671,6 +671,14 @@ private function registerDoctrineOrmConfiguration(ContainerBuilder $container, a
             ->setBindings(['$requestStack' => null]);
         $container->registerForAutoconfiguration(DoctrineOrmAbstractFilter::class);
 
+        // Legacy namespaces as strings we don't want to load the classes
+        $container->registerForAutoconfiguration('ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\QueryItemExtensionInterface')
+            ->addTag('api_platform.doctrine.orm.query_extension.item');
+        $container->registerForAutoconfiguration('ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\ContextAwareQueryCollectionExtensionInterface')
+            ->addTag('api_platform.doctrine.orm.query_extension.collection');
+        $container->registerForAutoconfiguration('ApiPlatform\Core\Bridge\Doctrine\Orm\Extension\QueryCollectionExtensionInterface')
+            ->addTag('api_platform.doctrine.orm.query_extension.collection');
+
         $loader->load('doctrine_orm.xml');
         $loader->load('legacy/doctrine_orm.xml');