style: ansible-lint is happy

roles/munin_client/tasks/garage.yml

@@ -1,7 +1,7 @@
 ---
 
 - name: Ensure some packages are installed
-  package:
+  ansible.builtin.apt:
     name: "{{ item }}"
     state: present
   loop:
@@ -21,7 +21,7 @@
     src: "files/{{ item }}"
     dest: "/etc/munin/plugins/{{ item }}"
     owner: root
-    user: root
+    group: root
     mode: '0755'
   notify:
     - Restart munin-node