Bump engine.io and socket.io in /frontend
Bumps [engine.io](https://github.com/socketio/engine.io) and [socket.io](https://github.com/socketio/socket.io). These dependencies needed to be updated together.
Updates `engine.io` from 6.1.3 to 6.2.1
- [Release notes](https://github.com/socketio/engine.io/releases)
- [Changelog](https://github.com/socketio/engine.io/blob/main/CHANGELOG.md)
- [Commits](https://github.com/socketio/engine.io/compare/6.1.3...6.2.1)
Updates `socket.io` from 4.4.1 to 4.5.3
- [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/4.4.1...4.5.3)
---
updated-dependencies:
- dependency-name: engine.io
dependency-type: indirect
- dependency-name: socket.io
dependency-type: indirect
...
Signed-off-by: dependabot[bot] <[email protected]>