ENGCOM-3271: Update api-functional test.

Author: p-bystritsky

dev/tests/api-functional/testsuite/Magento/Catalog/Api/CartItemRepositoryTest.php

@@ -70,6 +70,7 @@ public function testAddProductToCartWithCustomOptions()
                         'custom_options' => $this->getOptions(),
                     ],
                 ],
+                'price' => $item->getPrice(),
             ],
             $response
         );