Automatic merge from submit-queue (batch tested with PRs 42895, 45940)

[Federation] Automate configuring nameserver in cluster-dns for CoreDNS provider

Addresses issue #42894 #42822

**Release note**:
```
[Federation] CoreDNS server will be automatically added to nameserver resolv.conf chain When using CoreDNS as dns provider for federation during federation join.
```
cc @madhusudancs @kubernetes/sig-federation-bugs