Bump django-constance[redis] from 2.9.1 to 3.1.0

Bumps [django-constance[redis]](https://github.com/jazzband/django-constance) from 2.9.1 to 3.1.0.
- [Release notes](https://github.com/jazzband/django-constance/releases)
- [Changelog](https://github.com/jazzband/django-constance/blob/master/docs/changes.rst)
- [Commits](jazzband/django-constance@2.9.1...3.1.0)

---
updated-dependencies:
- dependency-name: django-constance[redis]
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements/production.txt

@@ -3,7 +3,7 @@ django-allauth==0.54.0
 django-analytical==3.1.0
 django-anymail[postmark]==10.0
 django-autoslug==1.9.9
-django-constance[redis]==2.9.1
+django-constance[redis]==3.1.0
 django-crispy-forms==1.14.0
 django-model-utils==4.3.1
 django-multiselectfield==0.1.12