Bump django from 4.1.2 to 4.2.16 in /example

Bumps [django](https://github.com/django/django) from 4.1.2 to 4.2.16.
- [Commits](django/django@4.1.2...4.2.16)

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

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

Author: dependabot[bot]

example/requirements.txt

@@ -5,4 +5,4 @@
 
 django-autofixture==0.12.1
 Pillow==6.2.2
-django==4.1.2
+django==4.2.16