Fix node version in website publish
Fix node version in website publish

Summary:
This is failing due to an out of date node version causing docusaurus to have a headache

Images are listed here: https://circleci.com/docs/2.0/docker-image-tags.json

Reviewed By: c-ryan747

Differential Revision: D23904750

fbshipit-source-id: d7255756a680e6653196cbd21d98f034563ff29a

facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl,facebook/FBSimulatorControl