doc: correct cjs code to match mjs code

PR-URL: https://github.com/nodejs/node/pull/39509


Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Harshitha K P <harshitha014@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Vladimir de Turckheim <vlad2t@hotmail.com>