Node.js v12 outputs a µWS warning in the console

[MicaiahReid]

It's real annoying. We should fix it, or drop Node 12 support.

[davidmurdoch]

I really thought there was an issue for this somewhere but I can't find it. We'll probably do this for 7.0.1.

[jeffsmale90]

ganache % node -v
v12.22.10
ganache % npm run start

> root@ start /Users/jeffsmale/g
> lerna exec --loglevel=silent --scope ganache -- npm run start --silent --

Debugger listening on ws://127.0.0.1:9229/d08ef9f4-7aa8-43c4-aafe-c7361649344c
For help, see: https://nodejs.org/en/docs/inspector
ganache vDEV (@ganache/cli: DEV, @ganache/core: DEV)
Starting RPC server

^^ No warnings :)