Add proxmox to target platforms

[devopstales]

Proxmox dose not allow to use libvirt for communication but there is a community collection for proxmox kvm and another for lxc:

• https://docs.ansible.com/ansible/latest/collections/community/general/proxmox_kvm_module.html
• https://docs.ansible.com/ansible/latest/collections/community/general/proxmox_module.html

It would be nice if you could add this options for this collection.