Misc fixes to make the supernode work

[github-actions[bot]]

🏗️ Terraform Plan

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  ~ update in-place

Terraform will perform the following actions:

  # module.supernode[0].proxmox_vm_qemu.supernode will be updated in-place
  ~ resource "proxmox_vm_qemu" "supernode" {
        id                     = "pm4/qemu/104"
        name                   = "supernode-dev-0"
      + pool                   = "supernodes-v2"
        # (37 unchanged attributes hidden)

        # (5 unchanged blocks hidden)
    }

Plan: 0 to add, 1 to change, 0 to destroy.