Upgrade to gitlab-qa 4.19.0
- upgrade gitlab-qa gem from 2.13.1 to 4.19.0
- change to using the gitlab-qa container base image so that nokogiri has what it needs to install properly as a dependency
- Add DOCKER_HOST environment variable so that docker can connect
Closes gitlab-org/omnibus-gitlab#5062 (closed)
Signed-off-by: Robert Marshall rmarshall@gitlab.com