Fetch instrumentation on Vercel

[lforst]

As it stands it looks like it is not possible to instrument fetch on the Vercel edge runtime by monkeypatchint. We need to collaborate with Vercel in order to solve this.

Issue in the Vercel repo: vercel/vercel#10814

[mydea]

@lforst is this still an issue? Just double checking, not sure if otel or our recent changes have changed something here 🤔

[lforst]

This should be fixed.