ACQE-8552: [AC-5466] Use DHL (US) Online Shipping Carrier on Checkout as a Registered Customer

- Added copyright.

Author: chandrakalahanchinal

dev/tests/integration/testsuite/Magento/Dhl/PlaceOrderWithDhlUsCarrierTest.php

@@ -1,4 +1,8 @@
 <?php
+/**
+ * Copyright 2025 Adobe
+ * All Rights Reserved.
+ */
 declare(strict_types=1);
 
 namespace Magento\Dhl;