Revert 10805 (Drop process polyfill when v2 is available)

[vicb]

Fixes #10855

Astro detects Node with:

const isNode = typeof process !== "undefined" && Object.prototype.toString.call(process) === "[object process]";

With unenv process would toString as [object Object] and isNode is false.
The the v2 implementation from @guybedford it toString as [object process] to match the Node implementation (this is correct) so isNode becomes true

However, when Node is detected, Astro construct a response from an AsyncIterable:

  if (streaming) {
    if (isNode && !isDeno) {
      const nodeBody = await renderToAsyncIterable(
        result,
        componentFactory,
        props,
        children,
        true,
        route
      );
      body = nodeBody;
    } else {
      body = await renderToReadableStream(result, componentFactory, props, children, true, route);
    }
  } else {
    body = await renderToString(result, componentFactory, props, children, true, route);
  }

But we know that workerd behavior does not conform to Node here, see cloudflare/workerd#2746. Fixing that issue would solve the Astro issue (i.e. we could drop the process polyfill).

However we will revert the PR dropping the polyfill for now.

Notes:

• It looks like sentry is also using the same isNode check - we should inspect commonly used packages before dropping the process polyfill again.

• There are a couples of additional changes on top of the revert:

  • the workerd dependency in unenv is bump to 0927 when the behavior of the builtin process.toString was updated
  • the latest version of the tests is used are they are more correct than the version before the PR.

---

• Tests
  • Tests included
  • Tests not necessary because: already tests, tested Astro locally
• Public documentation
  • Cloudflare docs PR(s):
  • Documentation not necessary because: not behavior change
• Wrangler V3 Backport
  • Wrangler PR:
  • Not necessary because: unenv changes not backported

[changeset-bot]

🦋 Changeset detected

Latest commit: 9a6f7f0

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[vicb]

/cc @jasnell @anonrig @danlapid

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commit: 9a6f7f0