Fix LaunchDaemon check to use become: true

LaunchDaemons run in the system domain and require sudo to query.
Without become: true, the check always fails and tries to reload.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

ansible/roles/alloy/tasks/main.yml

@@ -116,6 +116,7 @@
 
 - name: Check if macos-power-metrics LaunchDaemon is loaded
   ansible.builtin.command: launchctl list mcquack.eblume.macos-power-metrics
+  become: true
   register: alloy_power_metrics_launchctl_check
   changed_when: false
   failed_when: false