Most PR checks for backends build images that are prefixed with "pr-number-". The request is to support that behavior in frontend jobs as well.

The solution might be as simple as sourcing https://github.com/RedHatInsights/bonfire/blob/37a7caf47e2eefe77ea3278ef535d4eab5f625ac/cicd/bootstrap.sh  in https://gitlab.cee.redhat.com/insights-platform/frontend-build-container/-/blob/main/universal_build.sh

Source thread: https://coreos.slack.com/archives/C03Q3102QLQ/p1661334599714599