[FIX] remove apt conf if not in maintenance_contract

tasks/main.yml

@@ -111,7 +111,8 @@
       owner: root
       group: root
       mode: '0644'
-  when: ansible_os_family == "Debian"
+  when: ansible_os_family == "Debian" and inventory_hostname in groups.full_maintenance
+  tags: unattended-upgrade
 
 - name: Copy Unattended Upgrades configuration
   ansible.builtin.template: