SYS-662 add node-local-dns cache from kubernetes distro

[instantlinux]

Summary of Changes

Defines in the k8s Makefile the nodelocaldns import from kubernetes/kubernetes distribution repo to add a local DNS caching resolver on each node. The sequence:

make imports/nodelocaldns.yaml
make imports/nodelocaldns

will add a daemonset and related services to add a DNS resolver at 169.254.0.10, and reconfigure kube-proxy to automatically redirect traffic (via iptables) at 10.96.0.10 from all pods on all workers to the new address.

A prometheus scraper for grafana is added here as well, to support dashboard 11759. And: bumped Prometheus version from 3.3.1 to 3.5.0.

Why is this change being made?

UDP traffic between k8s nodes isn't reliable, especially under load. This is the widely-documented workaround to improve DNS reliability.

How was this tested? How can the reviewer verify your testing?

Local testing.

Completion checklist

• The pull request is linked to all related issues
• This change has unit test coverage
• Documentation has been updated
• Dependencies have been updated and verified