fix: lint error,add docstring to test_fetch_sponsor_info test

test_contributor_stats.py

@@ -161,6 +161,9 @@ def test_is_new_contributor_false(self):
 
     @patch("requests.post")
     def test_fetch_sponsor_info(self, mock_post):
+        """
+        Test the get_sponsor_information function.
+        """
         # Mock response data
         mock_response = MagicMock()
         mock_response.status_code = 200