Make File Permissions Mode a String (#4004)

Author: P-N-L

src/ansiblelint/rules/risky_file_permissions.md

@@ -50,7 +50,7 @@ Modules that are checked:
 - name: Safe example of using ini_file (2nd solution)
   community.general.ini_file:
     path: foo
-    mode: 0600  # explicitly sets the desired permissions, to make the results predictable
+    mode: "0600"  # explicitly sets the desired permissions, to make the results predictable
 
 - name: Safe example of using copy (3rd solution)
   ansible.builtin.copy: