gitlab: register configchanges so they stop the container, not using handler
 as these would cause it to restart twice on changes to the docker-compose.yml
gitlab: removed the kas option as it stopped gitlab from starting, probably we
 used the config from master and not 13.4.4
ansible: make tasks more pretty

disabled everthing related to prometheus, grafana and alertmanager
all the rest should be as before

upgrade from 1.12 to 1.21.2
swichting from discontinued mx1sd to still developed fork ma1sd