style: add YAML document start markers to Ansible playbooks and tasks

config/ansible/tasks/workstations/zen-browser.yml

@@ -1,3 +1,4 @@
+---
 - name: Set Zen browser version
   ansible.builtin.set_fact:
     zen_browser_version: "1.9b"
@@ -6,14 +7,14 @@
   ansible.builtin.file:
     path: "/opt/{{ browser_name }}"
     state: directory
-    mode: '0755'
+    mode: "0755"
   become: true
 
 - name: Download Zen browser tarball
   ansible.builtin.get_url:
     url: "https://github.com/zen-browser/desktop/releases/download/{{ zen_browser_version }}/zen.linux-x86_64.tar.xz"
     dest: "/tmp/{{ browser_name }}.tar.xz"
-    mode: '0644'
+    mode: "0644"
   become: true
 
 - name: Extract browser tarball
@@ -61,7 +62,7 @@
       Name=Open the Profile Manager
       Exec=/usr/local/bin/{{ browser_name }} --ProfileManager %u
     dest: "/usr/share/applications/zen.desktop"
-    mode: '0644'
+    mode: "0644"
   become: true
 
 - name: Update desktop database
@@ -73,7 +74,7 @@
 - name: Make desktop file executable
   ansible.builtin.file:
     dest: "/usr/share/applications/zen.desktop"
-    mode: '0755'
+    mode: "0755"
   become: true
 
 - name: Clean up downloaded tarball