Bump ws and engine.io-client in /website

Bumps [ws](https://github.com/websockets/ws) and [engine.io-client](https://github.com/socketio/socket.io). These dependencies needed to be updated together.

Updates `ws` from 8.17.0 to 8.18.0
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@8.17.0...8.18.0)

Updates `engine.io-client` from 6.5.3 to 6.5.4
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/main/CHANGELOG.md)
- [Commits](https://github.com/socketio/socket.io/commits)

---
updated-dependencies:
- dependency-name: ws
  dependency-type: indirect
- dependency-name: engine.io-client
  dependency-type: indirect
...

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