Format playbooks with ansible-lint

playbook-upgrade.yml

@@ -1,5 +1,5 @@
 ---
-- name: 'Update and upgrade system packages'
+- name: "Update and upgrade system packages"
   hosts: all
 
   vars_files:
@@ -9,7 +9,7 @@
   tasks:
     - name: Perform an upgrade of packages
       ansible.builtin.apt:
-        upgrade: 'yes'
+        upgrade: "yes"
         update_cache: true
 
     - name: Check if a reboot is required