Hello All We are running rancher on top of rke2 cluster which is managed manually. Then using rancher we are managing 6 different clusters. Yesterday I did a planned upgrade of one clusters which failed and created issues with calico. luckily I had a backup which I used to restore the cluster to a previous state. Today I tried the upgrade again and same thing so I had to restore the cluster from backup. I will have to upgrade this and other clusters eventually to new versions but I cant keep them down in the event of an issue during upgrade. To account for downtime, I want to clone one of my entire cluster and then run the upgrade on it. So how can I clone my cluster?