fix type test fail

Signed-off-by: BoazBD <boazbd@amazon.com>

python/python/tests/tests_server_modules/test_json.py

@@ -229,8 +229,7 @@ async def test_json_mget(self, glide_client: TGlideClient):
             [key1, key2],
             ".non_existing_path",
         )
-        expected_result = [None, None]
-        assert result == expected_result
+        assert result == [None, None]
 
         # Keys don't exist
         result = await json.mget(