[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

jupyter_scheduler/scheduler.py

@@ -2,10 +2,10 @@
 import os
 import random
 import shutil
-from typing import Dict, List, Optional, Type, Union
 import signal
 import subprocess
 import sys
+from typing import Dict, List, Optional, Type, Union
 from uuid import uuid4
 
 import fsspec