Bump django from 3.2 to 3.2.1

Bumps [django](https://github.com/django/django) from 3.2 to 3.2.1.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.2...3.2.1)

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

requirements-dev.txt

@@ -1,5 +1,5 @@
 -r docs/requirements.txt
-django==3.2
+django==3.2.1
 black==21.4b2
 isort==5.8.0
 flake8==3.9.0