Update quay.io/brancz/kube-rbac-proxy Docker tag to v0.21.0#35

vshn-renovate wants to merge 1 commit intomasterprojectsyn/component-patch-operator:masterfrom

commodore-renovate/quay.io-brancz-kube-rbac-proxy-0.xprojectsyn/component-patch-operator:commodore-renovate/quay.io-brancz-kube-rbac-proxy-0.xCopy head branch name to clipboard