Serve /docs from Worker

[MattIPv4]

During the investigation of nodejs/node#57252 it was discovered that /docs is not currently served by the Cloudflare Worker, it is still served by the NGINX origin. This should probably be changed to be served by the Worker, unless there are factors I'm unaware of that mean it needs to be NGINX-served still -- both /api and /dist/latest/docs are served from the Worker.