add quotes around octal values

YAML loaders will load them as strings, providing a consistent behavior. This is also safer as JSON does not support octal values either.

roles/nginx/tasks/main.yml

@@ -27,14 +27,14 @@
 - name: Create global config folder
   file:
     path: "/etc/nginx/global"
-    mode: 0755
+    mode: "0755"
     state: directory
 
 - name: Copy Nginx SSL Config
   template:
     dest: /etc/nginx/global/ssl.conf
     src: ssl.conf.j2
-    mode: 0644
+    mode: "0644"
   notify: reload nginx
 
 - name: Download pre-defined DHE group  # as recommended by IETF RFC 7919