refactor: yml -> yaml

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

roles/proxmox/tasks/10_create_secrets.yaml

@@ -0,0 +1,12 @@
+---
+- name: Ensure Vault file exists
+  ansible.builtin.file:
+    path: "{{ proxmox_vault_file }}"
+    state: touch
+    mode: "0600"
+
+- name: Update Vault data
+  ansible.builtin.include_tasks: 15_create_secret.yaml
+  loop: "{{ vms | map(attribute='name') }}"
+  loop_control:
+    loop_var: "vm_name"