Automatic merge from submit-queue (batch tested with PRs 47669, 40284, 47356, 47458, 47701)

Mark Static pods on the Master as critical

fixes #47277.

A known issue with static pods is that they do not interact well with evictions.  If a static pod is evicted or oom killed, then it will never be recreated.  To mitigate this, we do not evict static pods that are critical.  In addition, non-critical pods are candidates for preemption if a critical pod is scheduled to the node.  If there are not enough allocatable resources on the node, this causes the static pod to be preempted.

This PR marks all static pods in the kube-system namspace as critical.

cc @vishh @dchen1107