Dev/fix typing
This PR:
- enable type-checking on all Python code (except in the docs)
- fix all type-check errors due to the first point
- update pre-check tools
- update flake8 repo
La vérification des quotas de chaque projet est mise en place en mode non bloquant. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
Quota verification is enabled for projects in non-blocking mode. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=146834656
This PR: