32370 Fixed failed static test

Author: engcom-Charlie

dev/tests/api-functional/testsuite/Magento/GraphQl/Sales/RetrieveOrdersByOrderNumberTest.php

@@ -445,7 +445,7 @@ public function testGetCustomerDescendingSortedOrders()
         $customerOrderItemsInResponse = $response['customer']['orders']['items'];
         $expectedOrderNumbers = ['100000008', '100000007','100000006', '100000005', '100000004','100000002'];
 
-        foreach ($expectedOrderNumbers as $key => $data) {
+        foreach ($expectedOrderNumbers as $key) {
             $orderItemInResponse = $customerOrderItemsInResponse[$key];
             $this->assertEquals(
                 $orderItemInResponse['number'],