Bump django from 3.2.18 to 3.2.20

Bumps [django](https://github.com/django/django) from 3.2.18 to 3.2.20.
- [Commits](django/django@3.2.18...3.2.20)

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

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

requirements.txt

@@ -1,5 +1,5 @@
 pre-commit==2.15.0
-Django==3.2.18
+Django==3.2.20
 django-ckeditor==6.2.0
 coverage==6.3.2
 sorl-thumbnail==12.8.0