picking up from #492 to fix the CI issue.
note that i left the non-flake checks duplicating with flake ones (`pre-commit`, `panel`) in on both sides to get a sense of which way might be preferable.
Co-authored-by: Nicolas “Niols” Jeannerod <nicolas.jeannerod@moduscreate.com>
Reviewed-on: Fediversity/Fediversity#512
