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

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

Author: pre-commit-ci[bot]

weblate/vcs/tests/test_vcs.py

@@ -9,8 +9,8 @@
 import re
 import shutil
 import tempfile
-from io import BytesIO
 from contextlib import ExitStack
+from io import BytesIO
 from os import utime
 from pathlib import Path
 from time import time