cannot find module 'is-utf8'

cannot find module 'is-utf8'

`package.json`
```json
{
  "scripts": {
    "commit": "git-cz"
  }
}
```

running `yarn commit` results in the following output
```bash
$ yarn commit
yarn run v1.10.1
$ git-cz
Cannot find module 'is-utf8'
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
```