www/gitlab-ce: security update to 16.7.4
Changelog:
https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/
Security: 61fe903b-bc2e-11ee-b06e-001b217b3468
(cherry picked from commit db9794556b218359b1362fa62664ac9ab467f173)