fixed asyncio test

Author: orronai

tests/test_users.py

@@ -251,7 +251,7 @@ async def test_upload_avatar(self, student_user: User, captured_templates):
         await conftest.upload_avatar(client, self.image_storage)
         template, _ = captured_templates[-1]
         assert template.name == "user.html"
-        await conftest.upload_avatar(client, self.image_storage_2)
+        conftest.upload_avatar(client, self.image_storage_2)
         client.get('/avatar/delete')
         template, _ = captured_templates[-1]
         assert template.name == "user.html"