Use correct variable for initial config in zigbee2mqtt role

playbooks/roles/zigbee2mqtt/tasks/main.yaml

@@ -62,7 +62,7 @@
   become: true
   when: not zigbee2mqtt__conf_stat.stat.exists
   ansible.builtin.copy:
-    content: "{{ zigbee2mqtt__config }}"
+    content: "{{ zigbee2mqtt__initial_config }}"
     dest: /home/zigbee2mqtt/zigbee2mqtt_data/configuration.yaml
     mode: "640"
     owner: zigbee2mqtt