[BUG] VM created with provider has wrong disk format type in state

[TheUnixRoot]

Describe the bug
I created a vm in Proxmox 6.3 with disk type "raw", it works but now in state it is shown as type "qcow2", so it is marked as need to be recreated

To Reproduce
With Proxmox 6.3-2 and provider 0.4.4

Steps to reproduce the behavior:

1. Deploy a virtual machine with raw disk type:

resource "proxmox_virtual_environment_vm" "vm" {
  ...
  disk {
    datastore_id = "shared"
    interface    = "virtio0"
    file_format  = "raw"
    size         = var.pm_rootdisk_size
  }
  ...
}

2. Do a plan afterwards
3. It shows that the resource needs to be recreated because of this:

      ~ disk {
          ~ file_format  = "qcow2" -> "raw" # forces replacement
            # (3 unchanged attributes hidden)
        }

4. See error

Expected behavior
It should be "raw" also in state.

Additional context
If vm could be imported, this issue can be workaround, but this is not able to be done at the moment.