Bump django from 3.1.8 to 3.1.9 (#20)

Bumps [django](https://github.com/django/django) from 3.1.8 to 3.1.9.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.1.8...3.1.9)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
...

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

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

Author: dependabot[bot]

requirements.txt

@@ -4,7 +4,7 @@
 twine==3.1.1
 
 # django stuff
-Django==3.1.8
+Django==3.1.9
 djangorestframework==3.12.4
 
 # factories