schedule CI builds to update binaries on new Node releases

[ledbit]

Add scheduled tasks to build binaries for new NodeJS releases (more importantly LTS releases) - note need to go back a few js2bin versions as well

[OmgImAlexis]

This should help #15

[autr]

I've downloaded and compiled my node binary into cache with js2bin --ci --cache --node=16.5.0 --size=2MB

But when calling build it always tries to download it again and fails:

js2bin --build --cache --platform=darwin --node=16.5.0 --app=minified/index.js --name=EZE