www/gitlab: security and patch update to 17.1.2

Changes: https://about.gitlab.com/releases/2024/07/10/patch-release-gitlab-17-1-2-released/

Security: acb4eab6-3f6d-11ef-8657-001b217b3468
(cherry picked from commit 6a45a19b1e6e860cfac2db75eb0f3fab96eb5fee)