Update scope for lefthook package

I noticed that the original package has been deprecated: https://www.npmjs.com/package/@arkweid/lefthook, and the project moved to a new scope: https://www.npmjs.com/package/@evilmartians/lefthook.

Old project page redirects: https://github.com/arkweid/lefthook

While here, I regenerated yarn.lock file.