Bump node local dns version to 1.15.11 (#5805)
Bump node local dns version to 1.15.11 (#5805)

k8s-dns-node-cache now uses debian-iptables base images
to automatically use either iptables-legacy or iptables-nft
https://github.com/kubernetes/dns/pull/355
https://github.com/kubernetes/kubernetes/pull/82966

This adds support CentOS 8

Signed-off-by: Etienne Champetier <9ab2752ef511330cc7c7e4a3c6ccf1c368d285da@gmail.com>
Atoms/kubespray,Atoms/kubespray,kubernetes-sigs/kubespray,kubernetes-incubator/kargo,kubernetes-sigs/kubespray,kubernetes-incubator/kubespray,kubernetes-sigs/kubespray,Atoms/kubespray,kubernetes-incubator/kubespray,kubernetes-incubator/kargo,kubernetes-sigs/kubespray,Atoms/kubespray