graphQl-535: fixed namespace

Author: Vitaliy Boyko

dev/tests/api-functional/testsuite/Magento/GraphQl/Catalog/StoreConfigTest.php

@@ -5,7 +5,7 @@
  */
 declare(strict_types=1);
 
-namespace Magento\GraphQl\Store;
+namespace Magento\GraphQl\Catalog;
 
 use Magento\TestFramework\TestCase\GraphQlAbstract;