openshift-apps: overhaul coreos-cincinnati config
    
    This commit makes the coreos-cincinnati setup look similar to the
    other CoreOS/OSTree apps that we own. Notable changes:
    
    - We are still building via commit, we only track a single commit
      and not a separate deploy/build one.
    - We are now just outputting to a coreos-cincinnati-img:latest
      imagestream tag.
    - We are now using a fedora:38 imagestream tag as the from: in our
      build and triggering new builds based on imagestream updates,
      which means we'll get security updates more regularly.
    - A bunch of quoting (") in yaml files was removed as it clouded the
      diffs between this app and other apps.
    - Some minor diffs between playbooks and other files were removed.