chore(deps): bump luigi from 3.5.2 to 3.6.0 (#415)

Bumps [luigi](https://github.com/spotify/luigi) from 3.5.2 to 3.6.0.
- [Release notes](https://github.com/spotify/luigi/releases)
- [Changelog](https://github.com/spotify/luigi/blob/master/RELEASE-PROCESS.rst)
- [Commits](spotify/luigi@v3.5.2...v3.6.0)

---
updated-dependencies:
- dependency-name: luigi
  dependency-type: direct:production
...

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