feat: ensure keys own by root

ansible/roles/ssh_host_keys/tasks/main.yml

@@ -27,6 +27,8 @@
   ansible.builtin.unarchive:
     src: "/tmp/ssh_keys/{{ SSH_HOST_KEYS_S3_OBJECT }}"
     dest: "/etc/ssh"
+    group: root
+    owner: root
     remote_src: yes
   become: true