chore: Bump ws and puppeteer in /browser_tests

Bumps [ws](https://github.com/websockets/ws) to 8.18.0 and updates ancestor dependency [puppeteer](https://github.com/puppeteer/puppeteer). These dependencies need to be updated together.


Updates `ws` from 8.13.0 to 8.18.0
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.13.0...8.18.0)

Updates `puppeteer` from 20.2.0 to 22.15.0
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/release-please-config.json)
- [Commits](puppeteer/puppeteer@puppeteer-v20.2.0...puppeteer-v22.15.0)

---
updated-dependencies:
- dependency-name: ws
  dependency-type: indirect
- dependency-name: puppeteer
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>