Bump socket.io-parser from 3.2.0 to 4.2.1

Bumps [socket.io-parser](https://github.com/socketio/socket.io-parser) from 3.2.0 to 4.2.1.
- [Release notes](https://github.com/socketio/socket.io-parser/releases)
- [Changelog](https://github.com/socketio/socket.io-parser/blob/main/CHANGELOG.md)
- [Commits](socketio/socket.io-parser@3.2.0...4.2.1)

---
updated-dependencies:
- dependency-name: socket.io-parser
  dependency-type: indirect
...

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