www/gitlab: security and patch update to 19.4.2
Changes: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/?nav=19.4.2
Security: 5518664d-c652-11f1-b273-2cf05da270f3
(cherry picked from commit 1b13fcc39e65a85e91a67f00f3ad041bb507fa9a)