Hi there,

The node example provided (https://github.com/mozilla/pdf.js/tree/master/examples/node) fails on node.js >= 16.7. I believe that's due to the fact that the runtime is checked via `URL.createObjectURL` in `legacy/build/pdf.js` (repo: https://github.com/mozilla/pdfjs-dist/blob/master/legacy/build/pdf.js#L2459) and the fact that it has been recently introduced in node 16.7 (see: https://nodejs.org/api/url.html#urlcreateobjecturlblob)

Configuration:
- Node.js 16.7 or 16.8
- PDF.js version: latest

Steps to reproduce the problem:
1. Run pdf.js node example with node 16.7 or later

Error:
`stack:'ReferenceError: Blob is not defined\n    at createObjectURL`

Thanks!
if (
    typeof PDFJSDev === "undefined" ||
    PDFJSDev.test("!PRODUCTION || TESTING")
  ) {
    assert(
      typeof value === "number" && Math.abs(value) < 2 ** 32,
      `string32: Unexpected input "${value}".`
    );
  }
  return String.fromCharCode(
    (value >> 24) & 0xff,
    (value >> 16) & 0xff,
    (value >> 8) & 0xff,
    value & 0xff
  );
}
function objectSize(obj) {
  return Object.keys(obj).length;
}
function objectFromMap(map) {
  const obj = Object.create(null);
  for (const [key, value] of map) {
    obj[key] = value;
  }
  return obj;
}
function isLittleEndian() {