Fix tests

Author: dolfinus

tests/test_unit/test_groups/test_add_user_to_group.py

@@ -130,6 +130,7 @@ async def test_owner_cannot_add_user_to_group_with_wrong_role(
                 "loc": ["body", "role"],
                 "msg": "Input should be 'Maintainer', 'Developer' or 'Guest'",
                 "type": "enum",
+                "url": "https://errors.pydantic.dev/2.7/v/enum",
             }
         ]
     }

tests/test_unit/test_groups/test_update_member_role.py

@@ -78,6 +78,7 @@ async def test_owner_of_group_can_not_update_user_role_with_wrong_role(
                 "loc": ["body", "role"],
                 "msg": "Input should be 'Maintainer', 'Developer' or 'Guest'",
                 "type": "enum",
+                "url": "https://errors.pydantic.dev/2.7/v/enum",
             }
         ]
     }