Should throw error when trying to use tcp://

I accindentally misconfigured my health check of my mongodb with `npx wait-on tcp://127.0.0.1:27117 -t 10000`
After troubleshooting for an eternity, I saw that the correct syntax for the TCP protocol is `npx wait-on tcp:127.0.0.1:27117 -t 10000` (without the double slash)

The wait-on package should throw an error right away when tcp:// is used as protocol