www/gitlab: security and bugfix update to 16.11.2

Changes: https://about.gitlab.com/releases/2024/05/08/patch-release-gitlab-16-11-2-released/

MFH: 2024Q2
Security: fbc2c629-0dc5-11ef-9850-001b217b3468
(cherry picked from commit 0a3fc702692c2c662ed4c3f9e0ba178e50496c7c)