Bump django from 1.8.18 to 4.2.17

Bumps [django](https://github.com/django/django) from 1.8.18 to 4.2.17.
- [Commits](django/django@1.8.18...4.2.17)

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

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

requirements.txt

@@ -11,7 +11,7 @@ contextlib2==0.5.3
 cryptography==2.0.3
 django-environ==0.4.5
 dj-static==0.0.6
-Django==1.8.18
+Django==4.2.17
 django-admin-bootstrapped==2.3.6
 django-annoying==0.10.3
 django-appconf==1.0.2