Bump humanfriendly from 7.1 to 7.1.1 (#77)

Bumps [humanfriendly](https://github.com/xolox/python-humanfriendly) from 7.1 to 7.1.1.
- [Release notes](https://github.com/xolox/python-humanfriendly/releases)
- [Changelog](https://github.com/xolox/python-humanfriendly/blob/master/CHANGELOG.rst)
- [Commits](xolox/python-humanfriendly@7.1...7.1.1)

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