Bump django in /contract-tests/images/applications/django

Bumps [django](https://github.com/django/django) from 5.0.3 to 5.0.7.
- [Commits](django/django@5.0.3...5.0.7)

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

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

Author: dependabot[bot]

contract-tests/images/applications/django/requirements.txt

@@ -1,4 +1,4 @@
 opentelemetry-distro==0.46b0
 opentelemetry-exporter-otlp-proto-grpc==1.25.0
 typing-extensions==4.9.0
-django==5.0.3
+django==5.0.7