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

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

Author: pre-commit-ci[bot]

weblate_web/invoices/tests.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
-from datetime import date, timedelta
 import os
+from datetime import date, timedelta
 from decimal import Decimal
 from pathlib import Path
 from typing import cast