Bump django from 4.2.18 to 4.2.20

Bumps [django](https://github.com/django/django) from 4.2.18 to 4.2.20.
- [Commits](django/django@4.2.18...4.2.20)

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

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

Author: dependabot[bot]

requirements.txt

@@ -10,7 +10,7 @@ cloudpathlib==0.16.0
 confection==0.1.4
 construct==2.5.3
 cymem==2.0.8
-Django==4.2.18
+Django==4.2.20
 django-bootstrap-v5==1.0.11
 django-haystack==3.2.1
 django-widget-tweaks==1.5.0