Bump django-deprecate-fields from 0.1.2 to 0.2.1 (#80)

Bumps [django-deprecate-fields](https://github.com/3YOURMIND/django-deprecate-fields) from 0.1.2 to 0.2.1.
- [Commits](https://github.com/3YOURMIND/django-deprecate-fields/commits/0.2.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>