Windows support on the bash/sh code

`events.js:182 throw er; // Unhandled ‘error’ event ^

Error: spawn bash ENOENT `

[AddictArts]

@olstenlarck just to be clear, I was inputting that only cross-spawn could be considered versus using exca. Use whatever you want though and the exca project is certainly more than cross-spawn.

I’m not understanding the “waste time” comment; However, for me it was not a waist of time and I hope this helps the project and someone else like it helped me.

[AddictArts]

@olstenlarck

Here you go

## out 

```sh
yarn outdated —depth=0

Pretty much the simplest task will fail. It seems like there is a lack of Windows machines used to test on. I think the error clearly shows “sh” or “bash” does not exist to execute or spawn.