Add Matisse doctoral school (follows !2)
This PR isolates the changes in !2 (closed) specific to adding the new MATISSE doctoral school from the other changes. Author: Antonin Voyez.
GitLab upgrade completed. Current version is 18.6.4
https://about.gitlab.com/releases/2025/11/20/gitlab-18-6-released/
This PR isolates the changes in !2 (closed) specific to adding the new MATISSE doctoral school from the other changes. Author: Antonin Voyez.