Bump socket.io from 3.0.1 to 3.0.3
Bump socket.io from 3.0.1 to 3.0.3

Bumps [socket.io](https://github.com/socketio/socket.io) from 3.0.1 to 3.0.3.
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/master/CHANGELOG.md)
- [Commits](https://github.com/socketio/socket.io/compare/3.0.1...3.0.3)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
w3c/specberus,w3c/specberus,w3c/specberus