Make it work for Semantically Release packages

[tunnckoCore]

Just seem to not work for packages that is released with semantic-release, because version is something like 0.0.0-development (this is the default, but may have others like 0.0.0-semantically-released).

So the workaround now is in such CLIs to access the registry and get the version and pass it to update-notifier. It would be good to handle that case.

ref: https://github.com/sindresorhus/package-json

example workaround:

packageJson('my-awesome-pkg').then((info) => {
  updateNotifier({ pkg: info }).notify()
})