OCP4: Quay Container Security Operator impacts etcd storage due to high rate of imagemanifestvulns on large clusters

Issue

• OpenShift etcd database is constantly exceeding threshold in size for defragmentation.
• Thousands of objects are created of type:
  /kubernetes.io/secscan.quay.redhat.com/imagemanifestvulns//sha256.
• Observe constant defrag being issued on etcd database
• Observe that a significant portion of etcd storage is consumed by imagemanifestvulns objects that may appear as duplicates.
• Etcd performance may be degraded