improve ruff checks

[nikohansen]

We may want to shorten the ignore list for calling ruff here:

coco-postprocess/.github/workflows/python-package.yml

Line 25 in b8f9a69

run: ruff check --ignore E701 --ignore E712 --ignore E713 --ignore E722 --ignore E401 --ignore E703 --ignore F401 --ignore E402 --ignore F403 --ignore F405 src/