Not working for packages without a binding.gyp file

`electron-rebuild` only works on packages that include a `binding.gyp` file -> [rebuild.ts#L243](https://github.com/electron/electron-rebuild/blob/master/src/rebuild.ts#L243)

But this file is not necessary for packages that only rely on prebuilts distribution (ie. when there is no source code available in the package itself). So trying to rebuild those packages will silently fail even if they are eligible native Node.js modules.