Bump socket.io from 2.3.0 to 3.0.1

Bumps [socket.io](https://github.com/socketio/socket.io) from 2.3.0 to 3.0.1.
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/master/CHANGELOG.md)
- [Commits](socketio/socket.io@2.3.0...3.0.1)

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

Author: dependabot[bot]