Update the gh dependency version

When trying to update gh to the new version:

`
npm ERR! peerinvalid The package gh does not satisfy its siblings' peerDependencies requirements!
npm ERR! peerinvalid Peer dotfiles@0.5.0 wants gh@~1.8.2
npm ERR! peerinvalid Peer gh-gif@0.1.3 wants gh@>=1.4.0
npm ERR! peerinvalid Peer gh-jira@0.4.3 wants gh@>=1.8.0`