Fix issues reported by ansible-lint (var prefixes)

playbooks/roles/software/tasks/systemd-resolved.yml

@@ -14,26 +14,19 @@
     owner: "root"
     group: "root"
   become: true
-  register: systemd_resolved_config
+  notify:
+    - Restart tailscaled
+    - Restart systemd-resolved
 
-- name: Enable systemd-resolved and (re)start
+- name: Enable and systemd-resolved
   ansible.builtin.systemd_service:
     name: systemd-resolved.service
-    state: "{{ 'restarted' if systemd_resolved_config.changed else 'started' }}"
+    state: started
     enabled: true
     daemon_reload: true
   become: true
-  register: systemd_resolved_started
-
-- name: Restart other dns-related services
-  ansible.builtin.systemd_service:
-    name: "{{ item }}.service"
-    state: restarted
-    daemon_reload: true
-  become: true
-  when: systemd_resolved_started.changed # noqa: no-handler TODO can we add a handler here?
-  loop:
-    - tailscaled
+  notify:
+    - Restart tailscaled
 
 - name: Create resolv.conf symlink
   ansible.builtin.file: