refactor: yml -> yaml

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/proxmox/tasks/60_create_containers.yaml

@@ -0,0 +1,11 @@
+---
+- name: Load vault variables
+  ansible.builtin.include_vars:
+    file: "{{ proxmox_vault_file }}"
+    name: vm_secrets
+
+- name: Create vms
+  ansible.builtin.include_tasks: 65_create_container.yaml
+  loop: "{{ lxcs }}"
+  loop_control:
+    loop_var: "container"