[FIX] payment_{paypal,alipay}: update log for invalid notification origin

When the user configures PayPal/Alipay and in his PayPal/Alipay account he set
the IPN address to the webhook_url he receives a notification from PayPal/Alipay
with data. Then origin of that notification is checked and when PayPal/Alipay
sends 'invalid'/'false' as a response the error occurs.

To fix this issue the log is updated into a warning.

sentry-4116633764

closes odoo/odoo#121235

Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>

addons/payment_alipay/controllers/main.py

@@ -94,7 +94,7 @@ class AlipayController(http.Controller):
         else:
             response_content = response.text
             if response_content != 'true':
-                _logger.error(
+                _logger.warning(
                     "Alipay did not confirm the origin of the notification with data:\n%s", payload
                 )
                 raise Forbidden()

addons/payment_paypal/controllers/main.py

@@ -202,7 +202,7 @@ class PaypalController(http.Controller):
         else:
             response_content = response.text
             if response_content != 'VERIFIED':
-                _logger.error(
+                _logger.warning(
                     "PayPal did not confirm the origin of the notification with data:\n%s",
                     pprint.pformat(notification_data),
                 )