MC-17117: PayPal :: Pay Flow Pro support

- added fixes for static failures

Author: avattam06

app/code/Magento/Paypal/Model/Payflow/Service/Response/Transaction.php

@@ -111,6 +111,7 @@ public function getResponseObject($gatewayTransactionResponse)
      * Saves payment information in quote.
      *
      * @param DataObject $response
+     * @param string $cartId
      * @return void
      * @throws \InvalidArgumentException
      */

dev/tests/integration/testsuite/Magento/PaypalGraphQl/Model/Resolver/Guest/PaypalPayflowProSetPaymentMethodTest.php

@@ -224,7 +224,6 @@ public function testResolveGuest(): void
             $responseData['data']['handlePayflowProResponse']['cart']['selected_payment_method']['code']
         );
 
-
         $this->assertTrue(
             isset($responseData['data']['placeOrder']['order']['order_id'])
         );