fix: update SSH key path variable to use ssh_keys_file in configuration tasks

tasks/configure-vm.yml

@@ -139,13 +139,13 @@
 
     - name: "[CONFIG] Verify SSH key is readable"
       ansible.builtin.stat:
-        path: "{{ ssh_key_path | expanduser }}"
+        path: "{{ ssh_keys_file | expanduser }}"
       register: ssh_key_stat
       failed_when: not ssh_key_stat.stat.readable
 
     - name: "[CONFIG] Copy SSH public key to snippets"
       ansible.builtin.copy:
-        src: "{{ ssh_key_path | expanduser }}"
+        src: "{{ ssh_keys_file | expanduser }}"
         dest: "/var/lib/vz/snippets/{{ vm_id }}-sshkey.pub"
         mode: "0644"
       register: ssh_snippet