www/gitlab: security and patch update to 19.3.1

Changes: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-3-1-released/?nav=19.3.1
Security: 161b1c49-a29b-11f1-a883-2cf05da270f3
(cherry picked from commit aabcdb820ddad95b41b7395dcf9b3a3baafcc2cf)