Bump graphene-django from 3.0.0 to 3.2.2

Bumps [graphene-django](https://github.com/graphql-python/graphene-django) from 3.0.0 to 3.2.2.
- [Release notes](https://github.com/graphql-python/graphene-django/releases)
- [Commits](graphql-python/graphene-django@v3.0.0...v3.2.2)

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

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

requirements/base.txt

@@ -76,5 +76,5 @@ django-guardian
 
 # GraphQL
 # ------------------------------------------------------------------------------
-graphene-django==3.0.0  # TODO - upgrade at some point. Will require some refactoring.
+graphene-django==3.2.2  # TODO - upgrade at some point. Will require some refactoring.
 django-graphql-jwt