Bump django from 4.1.3 to 4.1.9 in /python-django-sso-example

Bumps [django](https://github.com/django/django) from 4.1.3 to 4.1.9.
- [Commits](django/django@4.1.3...4.1.9)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

python-django-sso-example/requirements.txt

@@ -1,7 +1,7 @@
 asgiref==3.5.2
 certifi==2020.12.5
 chardet==4.0.0
-Django==4.1.3
+Django==4.1.9
 idna==2.10
 pytz==2021.1
 requests==2.25.1