Merge pull request #680 from collective/ruff

Ruff formatting

.github/workflows/ruff.yml

@@ -0,0 +1,9 @@
+name: Ruff
+on: [push, pull_request]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: chartboost/ruff-action@v1
+        continue-on-error: true

CHANGES.rst

@@ -63,6 +63,7 @@ Breaking changes:
 
 New features:
 
+- Check code quality with `Ruff <https://docs.astral.sh/ruff/>`_, optional report
 - Test compatibility with Python 3.12
 - Add function ``icalendar.use_pytz()``.
 - Allows selecting components with ``walk(select=func)`` where ``func`` takes a