Bump optionator from 0.9.3 to 0.9.4

Bumps [optionator](https://github.com/gkz/optionator) from 0.9.3 to 0.9.4.
- [Changelog](https://github.com/gkz/optionator/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gkz/optionator/commits)

---
updated-dependencies:
- dependency-name: optionator
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>