[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/executors.py

@@ -1,9 +1,9 @@
 import io
+import multiprocessing as mp
 import os
 import shutil
 import tarfile
 import traceback
-import multiprocessing as mp
 from abc import ABC, abstractmethod
 from functools import lru_cache
 from typing import Dict, List