Bump python-slugify from 5.0.2 to 6.1.1 (#220)

Bump python-slugify from 5.0.2 to 6.1.1 (#220)

Bumps [python-slugify](https://github.com/un33k/python-slugify) from 5.0.2 to 6.1.1.
- [Release notes](https://github.com/un33k/python-slugify/releases)
- [Changelog](https://github.com/un33k/python-slugify/blob/master/CHANGELOG.md)
- [Commits](https://github.com/un33k/python-slugify/compare/5.0.2...v6.1.1)

---
updated-dependencies:
- dependency-name: python-slugify
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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