createCall's incoming request is not a readable stream

[Tofandel]

Environment

NA

Reproduction

import { createCall } from "unenv/runtime/fetch/index";

createCall(async (req, res) => {
  console.log(req.readable); // false
  console.log(req.readableLength); // 0
  console.log(req.header["content-length"]); //undefined
})({url: '/', body: 'test'})

Describe the bug

While the real node implementation of a server would have req.readable = true and readableLength = 4 as well as a content-length = 4 header

Additional context

No response

Logs

No response

[vicb]

relates to unjs/unenv#365