test: Correct payment method delete test mock response code (#71)

tests/Functional/Resources/PaymentMethods/test_PaymentMethodsClient.py

@@ -204,6 +204,7 @@ def test_get_payment_methods_returns_expected_card_response(
             str(expected_response_body)
         ), "The response JSON generated by ResponseParser() doesn't match the expected fixture JSON"
 
+        assert response.id == "paymtd_01hs8zx6x377xfsfrt2bqsevbw"
         assert response.customer_id == "ctm_01hv6y1jedq4p1n0yqn5ba3ky4"
         assert response.address_id == "add_01hv8h6jj90jjz0d71m6hj4r9z"
         assert response.paypal is None
@@ -249,6 +250,7 @@ def test_get_payment_methods_returns_expected_paypal_response(
             str(expected_response_body)
         ), "The response JSON generated by ResponseParser() doesn't match the expected fixture JSON"
 
+        assert response.id == "paymtd_01hs8zx6x377xfsfrt2bqsevbw"
         assert response.customer_id == "ctm_01hv6y1jedq4p1n0yqn5ba3ky4"
         assert response.address_id == "add_01hv8h6jj90jjz0d71m6hj4r9z"
         assert response.card is None
@@ -269,7 +271,7 @@ def test_delete_payment_method_returns_expected_response(
     ):
         customer_id = "ctm_01hv6y1jedq4p1n0yqn5ba3ky4"
         payment_method_id = "paymtd_01hs8zx6x377xfsfrt2bqsevbw"
-        expected_response_status = 200
+        expected_response_status = 204
         expected_path = "/customers/ctm_01hv6y1jedq4p1n0yqn5ba3ky4/payment-methods/paymtd_01hs8zx6x377xfsfrt2bqsevbw"
 
         expected_url = f"{test_client.base_url}{expected_path}"