Finalize v2.5.0
This MR is about merging somewhat-marginal changes and documentation enhancements towards releasing DecLearn 2.5.0.
Git-LFS is now available on our GitLab instance.
Please note that the quota check is now in blocking mode. More informations about quotas: https://gitlab.inria.fr/siteadmin/doc/-/wikis/faq#quota-management-policy-to-monitor-disk-space-by-project-on-gitlab
GitLab upgrade completed. Current version is 17.8.2.
This MR is about merging somewhat-marginal changes and documentation enhancements towards releasing DecLearn 2.5.0.