Match supported k8s versions with R4
Created by: chess-knight
As discussed in https://github.com/SovereignCloudStack/k8s-cluster-api-provider/pull/440#discussion_r1243319562
Created by: chess-knight
As discussed in https://github.com/SovereignCloudStack/k8s-cluster-api-provider/pull/440#discussion_r1243319562