Update ruff to v0.17.0 (#7363)

* Update ruff to v0.17.0

* Import datetime members directly in core tests

Ruff 0.17.0 adds `datetime as dt` as a default import convention
(ICN001), which flags the plain `import datetime` module import in
tests/test_core.py. Import the used members directly instead, matching
how the rest of the code base imports datetime.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Stefan Agner <stefan@agner.ch>
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

Author: 3 people

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.16.10
+    rev: v0.17.0
     hooks:
       - id: ruff
         args:

requirements_tests.txt

@@ -9,7 +9,7 @@ pytest-cov==7.1.0
 pytest-timeout==2.4.0
 pytest-xdist==3.8.0
 pytest==9.1.1
-ruff==0.16.10
+ruff==0.17.0
 time-machine==3.5.1
 types-pyyaml==6.0.12.20260906
 urllib3==2.8.0

tests/test_core.py

@@ -3,7 +3,7 @@
 # pylint: disable=W0212
 import asyncio
 from contextlib import suppress
-import datetime
+from datetime import UTC, datetime, timedelta
 import errno
 from unittest.mock import AsyncMock, MagicMock, PropertyMock, patch
 
@@ -59,7 +59,7 @@ async def test_write_state(run_supervisor_state: MagicMock, coresys: CoreSys):
 
 async def test_adjust_system_datetime(coresys: CoreSys, websession: MagicMock):
     """Test _adjust_system_datetime method with successful retrieve_whoami."""
-    utc_ts = datetime.datetime.now().replace(tzinfo=datetime.UTC)
+    utc_ts = datetime.now().replace(tzinfo=UTC)
     with patch(
         "supervisor.core.retrieve_whoami",
         new_callable=AsyncMock,
@@ -79,7 +79,7 @@ async def test_adjust_system_datetime_without_ssl(
     coresys: CoreSys, websession: MagicMock
 ):
     """Test _adjust_system_datetime method when retrieve_whoami raises WhoamiSSLError."""
-    utc_ts = datetime.datetime.now().replace(tzinfo=datetime.UTC)
+    utc_ts = datetime.now().replace(tzinfo=UTC)
     with patch(
         "supervisor.core.retrieve_whoami",
         new_callable=AsyncMock,
@@ -104,9 +104,7 @@ async def test_adjust_system_datetime_if_time_behind(
     systemd_unit_service.active_state = "active"
     systemd_unit_service.active_state_read.clear()
 
-    utc_ts = datetime.datetime.now().replace(tzinfo=datetime.UTC) + datetime.timedelta(
-        hours=1, minutes=1
-    )
+    utc_ts = datetime.now().replace(tzinfo=UTC) + timedelta(hours=1, minutes=1)
     with (
         patch(
             "supervisor.core.retrieve_whoami",