chore(deps): bump django from 4.2.15 to 4.2.16 in /docs

Bumps [django](https://github.com/django/django) from 4.2.15 to 4.2.16.
- [Commits](django/django@4.2.15...4.2.16)

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

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

docs/requirements.txt

@@ -3,7 +3,7 @@ asgiref==3.6.0
 Babel==2.12.1
 certifi==2024.7.4
 charset-normalizer==3.1.0
-Django==4.2.15
+Django==4.2.16
 docutils==0.16
 idna==3.7
 imagesize==1.4.1