chore(deps): bump commander from 7.0.0 to 7.1.0

Bumps [commander](https://github.com/tj/commander.js) from 7.0.0 to 7.1.0.
- [Release notes](https://github.com/tj/commander.js/releases)
- [Changelog](https://github.com/tj/commander.js/blob/master/CHANGELOG.md)
- [Commits](tj/commander.js@v7.0.0...v7.1.0)

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