Namespace fix

Author: rogyar

dev/tests/api-functional/testsuite/Magento/GraphQl/OfflineShipping/SetOfflineShippingMethodsOnCartTest.php

@@ -5,7 +5,7 @@
  */
 declare(strict_types=1);
 
-namespace Magento\GraphQl\Quote;
+namespace Magento\GraphQl\OfflineShipping;
 
 use Magento\Integration\Api\CustomerTokenServiceInterface;
 use Magento\Quote\Model\Quote;