[Bug]: Engine JSON Parsing Error

[kenneypVL]

Describe the bug
When using puppeteer-with-fingerprints, the library crashes with a JSON parsing error. It looks like the remote engine is receiving undefined instead of a valid JSON response, which causes JSON.parse to fail.

Error Trace

undefined:1
undefined
^

SyntaxError: "undefined" is not valid JSON
    at JSON.parse (<anonymous>)
    at RemoteEngine.runFunction (C:\Users\myaccount\myinstalls\install_104-62\node_modules\browser-with-fingerprints\src\plugin\connector\engine.js:120:17)
    at async C:\Users\myaccount\myinstalls\install_104-62\node_modules\browser-with-fingerprints\src\plugin\connector\index.js:33:36

Node.js v22.11.0
C:\Windows\system32\WindowsPowerShell\v1.0\

Steps to reproduce
Steps to reproduce the behavior:

1. Install puppeteer-with-fingerprints and run a basic script that launches a browser.
2. Call a fingerprint function (e.g., launch with fingerprint injection enabled).
3. The script immediately throws the above error.

Code example

import puppeteer from "puppeteer-with-fingerprints";

(async () => {
  const browser = await puppeteer.launch({
    headless: true,
  });

  const page = await browser.newPage();
  await page.goto("https://example.com");

  await browser.close();
})();

Expected behavior
The browser should launch normally with fingerprints applied, without throwing a JSON parsing error.

System (please complete the following information):
Plugin version: v2.3.3
Node version: v22.11.0
OS: Windows

Additional context
This only happens when using the fingerprints connector. It seems like something in engine.js is returning undefined instead of valid JSON, causing JSON.parse to fail.