Improve npx speed

[bep]

Resolving binaries with npx seem to have about 200ms overhead, which isn't great ...

See tailwindlabs/tailwindcss#13886

[bep]

So, I have done some research on this and there's no way to cache the path found by npx.¹. So what I'm suggesting/doing is:

1. Check WORKDIR\node_modules\.bin\<binaryName>
2. Check npx if npx is available.
3. Check PATH

Footnotes

1. There's npm which, but that triggers a "download prompt", which is not something we can support. ↩