Bump engine.io and socket.io in /scroll effects css java/jarallax

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

Updates `engine.io` from 6.5.4 to 6.6.9
- [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/engine.io@6.6.9)

Updates `socket.io` from 4.7.5 to 4.8.3
- [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/compare/socket.io@4.7.5...socket.io@4.8.3)

---
updated-dependencies:
- dependency-name: engine.io
  dependency-version: 6.6.9
  dependency-type: indirect
- dependency-name: socket.io
  dependency-version: 4.8.3
  dependency-type: indirect
...

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Author: dependabot[bot]