CI: Freeze tox version under 4.x
This PR:
- provide a quick and dirty fix for tox (new version of tox limit the use of "external" commands such rm).
La mise à jour de gitlab est terminée. Nous sommes désormais en version 16.11.1
Merci de consulter la release note:
https://about.gitlab.com/releases/2024/04/18/gitlab-16-11-released/
This PR: