Support clusterctl alpha rollout kthreescontrolplane/...

[wikoion]

What would you like to be added (User Story)?

As a developer I would like to add support to clusterctl to rollout kthreescontrolplanes, similar to the support for kubeadm controlplanes.

Detailed Description

I'd like to discuss approach, I'm happy to do the work, but wanted to get some advice on how we could implement this. The easy option is something like this, but I understand that it might not be desireable to import these external packages. If that is the case could we refactor rollout to support any kind of resource that implementes rolloutAfter in it's spec? Currently cluster-api-k3s uses upgradeAfter, but if we chose this option we could add another api version similar to what was done in this project.

Anything else you would like to add?

No response

Label(s) to be applied

/kind feature One or more /area label. See https://github.com/kubernetes-sigs/cluster-api/labels?q=area for the list of labels.