Bump django in /src/approov-protected-server/token-binding-check

Bumps [django](https://github.com/django/django) from 3.2.25 to 4.2.16.
- [Commits](django/django@3.2.25...4.2.16)

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

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

Author: dependabot[bot]

src/approov-protected-server/token-binding-check/requirements.txt

@@ -1,5 +1,5 @@
 asgiref==3.8.1
-Django==3.2.25
+Django==4.2.16
 PyJWT==2.8.0
 python-dotenv==0.10.3
 pytz==2020.1