isort imports in tests/freqai

tests/freqai/conftest.py

@@ -1,8 +1,9 @@
 from copy import deepcopy
 from pathlib import Path
+from unittest.mock import MagicMock
 
 import pytest
-from unittest.mock import MagicMock
+
 from freqtrade.configuration import TimeRange
 from freqtrade.data.dataprovider import DataProvider
 from freqtrade.freqai.data_drawer import FreqaiDataDrawer