style: make ansible-lint happier

roles/firewall/handlers/main.yml

@@ -1,6 +1,6 @@
 ---
 
-- name: reload firewall
-  openwrt_init:
+- name: Reload firewall
+  community.general.openwrt_init:
     name: firewall
     state: reloaded

roles/firewall/tasks/main.yml

@@ -1,7 +1,8 @@
 ---
 
-- name: generate firewall file
-  template:
+- name: Generate firewall file
+  ansible.builtin.template:
     src: firewall.j2
     dest: /etc/config/firewall
-  notify: reload firewall
+    mode: 0644
+  notify: Reload firewall