Bump django-colorfield from 0.11.0 to 0.12.0

Bumps [django-colorfield](/~https://github.com/fabiocaccamo/django-colorfield) from 0.11.0 to 0.12.0.
- [Release notes](/~https://github.com/fabiocaccamo/django-colorfield/releases)
- [Changelog](/~https://github.com/fabiocaccamo/django-colorfield/blob/0.12.0/CHANGELOG.md)
- [Commits](fabiocaccamo/django-colorfield@0.11.0...0.12.0)

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

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

requirements.txt

@@ -1,3 +1,3 @@
 django >= 2.2
-django-colorfield == 0.11.0
+django-colorfield == 0.12.0
 python-slugify == 8.0.4