Add missing require shims

[orinokai]

Next.js 13.3.1-canary.8 introduces a change to the fetch handling that uses the global Buffer object. This causes a runtime error because Buffer is not available in Deno.

@Skn0tt has commented on the PR, but until this is fixed (or assuming it won't be) we should implement a workaround by adding Buffer to our shims.

[Skn0tt]

Next.js 13.3.1-canary.8 introduces a change to the fetch handling that uses the global Buffer object. This causes a runtime error because Buffer is not available in Deno.

It doesn't use the global Buffer object, but require("node:buffer"). So if we shim something, we'll have to shim require - which sounds even worse than shimming globalThis.Buffer ...

[ascorbic]

This is a lovely new feature from Turbopack vercel/turborepo#4368