www/gitlab: major upgrade to 17.10.0

Changes: https://about.gitlab.com/releases/2025/03/20/gitlab-17-10-released/

Please follow upgrade manual:
https://gitlab.com/mfechner/freebsd-gitlab-docu/-/blob/master/update/17.9-17.10-freebsd.md

(cherry picked from commit ab2a918b0d7a4b52e10ef5c4e1facc2ec63c9bcf)