Updating docker tag in gitlab ci iml
Replacing "docker-privileged" to "docker-privileged-xl" in https://gitlab.cern.ch/HiggsDNA-project/HiggsDNA/-/blob/master/.gitlab-ci.yml#L27 as advised by @magalli following mail from Ismael on behalf of the Git Service.
At the moment, we need the docker privileged runner for the docker-in-docker feature, see https://gitlab.docs.cern.ch/docs/Build%20your%20application/CI-CD/Runners/docker-privileged-runners?_highlight=privil. In case they decide to decommission these as well, we will have to move to the new Kubernetes shared runners (https://gitlab.docs.cern.ch/docs/Build%20your%20application/CI-CD/Runners/k8s-shared-runners) and change the way in which we set up the environment in the tests (quoting Massimiliano).
References: