vault, vault_share: Error on test

With the changes introduced on odoo/odoo@a251b14#diff-99de14b6e0a411718ac3adaaf779395155841c7ca9d95fa258369656dae63d18
the tests of vault and vault_share are failing.

vault_share/tests/test_share.py

@@ -59,7 +59,7 @@ def return_context(template, context):
             return context
 
         with MockRequest(self.env) as request_mock:
-            request_mock.render.side_effect = return_context
+            request_mock.render = return_context
             controller = main.Controller()
 
             response = controller.vault_share("")