[fix] Fix a flake8 issue

Author: nabenabe0928

test/test_api/test_results_manager.py

@@ -3,10 +3,10 @@
 from test.test_api.utils import make_dict_run_history_data
 from unittest.mock import MagicMock
 
-from ConfigSpace.configuration_space import Configuration, ConfigurationSpace
-
 import ConfigSpace.hyperparameters as CSH
 
+from ConfigSpace.configuration_space import Configuration, ConfigurationSpace
+
 import numpy as np
 
 import pytest