Bump django from 5.2.10 to 5.2.12 in /sample-apps/django-asgi-uvicorn

Bumps [django](https://github.com/django/django) from 5.2.10 to 5.2.12.
- [Commits](django/django@5.2.10...5.2.12)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 5.2.12
  dependency-type: direct:production
...

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

Author: dependabot[bot]