Otherwise, this job might fail, depending on the runner which executes
the job, due to different configurations, especially wrt the default
image.

Ref !105

- Remove some useless linters
- Make use of ruff

This reverts commit 29057d6c.

Isn't borderline useless compared to mypy and pylint

Nobody should be using Poppler < 0.46

A zip file with a file pointing to /etc/passwd would, upon being cleaned by
mat2, produce a file with the filesystem's /etc/passwd file.

Thanks to Maxime Morin ( https://www.maijin.fr/ )
for the patch.

This should prevent the testsuite from breaking,
and marginally increase fingerprinting resistance.