bug: modified add-ambient-mode-namespace to not apply on kube-system nor istio-system namespace#1322

Shreesh-Gawande wants to merge 5 commits intokyverno:mainkyverno/policies:mainfrom

Shreesh-Gawande:block_kubctlcpShreesh-Gawande/policies:block_kubctlcpCopy head branch name to clipboard