Non-existent ScanSetting priority classes silently break the ability to rerun scans in Compliance Operator

Issue

• Compliance Operator jobs fail with the below mentioned error:

  
  $ oc get cronjobs -n opneshift-compliance
  NAME                                           SCHEDULE    SUSPEND   ACTIVE   LAST SCHEDULE     AGE
  cis-rerunner-xxxxxxxx-                          0 1 * * *     False     0        <none>          151m
  
  $ oc describe job cis-rerunner-xxxxxxxx -n openshift-compliance
  Events:
  Type     Reason        Age               From            Message
  ----     ------        ----              ----            -------
  Warning  FailedCreate  6s (x6 over 37s)  job-controller  Error creating: pods "cis-rerunner-xxxxxxxx-" is forbidden: no PriorityClass with name compliance-high-priority was found