Add Kubernetes recommended labels to rke2 static pods

[vlaborie]

Is your feature request related to a problem? Please describe.

I use Kubernetes recommended labels, notably app.kubernetes.io/name to determine which app is running in pods and correctly monitoring it (i can group or filter logs/metrics by theses labels, add custom logs parsing and alerting if necessary).

Describe the solution you'd like

I like if rke2 deployed static pods (etcd, cloud-controller-manager, kube-apiserver, kube-controller-manager, kube-scheduler) have theses labels configured by default.

Describe alternatives you've considered

There is no fully automated way to do this, right now i need to add an hardcoded exception to label parsing for every project not having theses recommended labels (eg. parsing component label only for rke2 static pods) hopping for having no conflict with other projects labels.