Added todo

Author: sedonik

dev/tests/integration/testsuite/Magento/Customer/_files/customer_subscribe_rollback.php

@@ -3,6 +3,7 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+// TODO: Should be removed in scope of https://github.com/magento/graphql-ce/issues/167
 declare(strict_types=1);
 
 use Magento\Framework\App\Config\Storage\WriterInterface;