Bump django-slack from 5.16.2 to 5.17.6 (#4992)
Bump django-slack from 5.16.2 to 5.17.6 (#4992)

Bumps [django-slack](https://github.com/lamby/django-slack) from 5.16.2 to 5.17.6.
- [Release notes](https://github.com/lamby/django-slack/releases)
- [Commits](https://github.com/lamby/django-slack/compare/5.16.2...5.17.6)

---
updated-dependencies:
- dependency-name: django-slack
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
rackerlabs/django-DefectDojo,rackerlabs/django-DefectDojo,rackerlabs/django-DefectDojo,rackerlabs/django-DefectDojo