[steal] steal vulnerable to Prototype Pollution via optionName variable

Prototype pollution vulnerability in stealjs steal 2.2.4 via the optionName variable in main.js.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-37264
• https://github.com/stealjs/steal/issues/1533
• https://github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/main.js#L2194
• https://github.com/stealjs/steal/blob/c9dd1eb19ed3f97aeb93cf9dcea5d68ad5d0ced9/main.js#L647
• https://github.com/advisories/GHSA-8f8g-9j73-7p82