chore(package): update yargs to version 4.7.0
chore(package): update yargs to version 4.7.0

https://greenkeeper.io/
mduemcke/pace,mduemcke/pace,lplotni/pace,lieblingswelt/pace,cz8s/pace,lplotni/pace,lieblingswelt/pace,lplotni/pace,cz8s/pace,cz8s/pace