Update dev/tests/integration/testsuite/Magento/Framework/Api/SearchCriteria/CollectionProcessor/JoinProcessorTest.php

Co-authored-by: Andrii Beziazychnyi <a.beziazychnyi@atwix.com>

Author: fgerodez

dev/tests/integration/testsuite/Magento/Framework/Api/SearchCriteria/CollectionProcessor/JoinProcessorTest.php

@@ -1,4 +1,8 @@
 <?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
 declare(strict_types=1);
 
 namespace Magento\Framework\Api\SearchCriteria\CollectionProcessor;