style: make ansible-lint happier

roles/mumble/handlers/main.yml

@@ -1,6 +1,6 @@
 ---
 
-- name: restart mumble
-  service:
+- name: Restart mumble
+  ansible.builtin.service:
       name: mumble-server
       state: restarted

roles/mumble/tasks/main.yml

@@ -1,13 +1,14 @@
 ---
 
-- name: install mumble
-  package:
+- name: Install mumble
+  ansible.builtin.package:
     name: mumble-server
     state: present
 
-- name: configuration files
-  copy:
+- name: Configuration files
+  ansible.builtin.copy:
     src: ./files/mumble-server.ini
     dest: /etc/mumble-server.ini
+    mode: 0644
   notify:
-    - restart mumble
+    - Restart mumble