Migrate rke "admin" cluster to rke2 cluster

As we did the previous archive-production and archive-staging clusters.

Create new cluster, migrate existing applications to that cluster, drop and clean resources from the previous cluster.

• Declare the IPs on the inventory
• Declare and Create a new cluster admin-rke2 with terraform [1]
• Create the thanos configuration for the cluster in puppet and azure
• Declare the cluster in the firewall aliases
• Create the argocd configuration (Cluster, secrets, configurations (metallb, monitoring, alerting, blackbox, ...)
• Ensure argocd is deployed and working
• Ensure minio is deployed and working
• Migrate argocd vhost to the new cluster
• Migrate minio vhost to the new cluster
• Decommission the old admin cluster

[1] The sizing of the current admin cluster looks ok in memory, large in cpu