Story (Required)

Create a new image repository named `argocd-image-updater-rhel8` in Comet to release argocd image updater images to regsitry.redhat.com. See similar issue for argocd-agent: https://issues.redhat.com/browse/GITOPS-7191

Background and Approach (Required)

Create a new repo in https://comet.engineering.redhat.com/

Acceptance Criteria (Mandatory)

`openshift-gitops-1/argocd-image-updater-rhel8` image repository is created in Comet