www/gitlab: security and bugfix update to 17.9.2

Changes: https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released/
Security: a435609c-ffd5-11ef-b4e4-2cf05da270f3
(cherry picked from commit fd8d065bf288e0d18a8572aa5ea8dd4de9f48f35)