After making the recent mandatory change to shared GitLab runners, our 
upstream-downstream Jobs started failing with OOMKilled and other resource constrain-related failures. 
This task is to update the .gitlab-ci.yml configuration to add resources that will hopefully help us avoid such errors based on: https://source.redhat.com/groups/public/gitlabcee/user_documentation/gitlabcee_shared_runner_faqs#how-to-request-more-resources-