www/gitlab: security update to 19.2.4
Changes: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-4-released/?nav=19.2.4
Security: 3a65fb7e-9ac2-11f1-bdc8-2cf05da270f3
(cherry picked from commit d7ee3dbf7cdc4cb71516bf6d03c51595955d232a)