Bump django from 4.2.3 to 4.2.11 in /mysite

Bumps [django](https://github.com/django/django) from 4.2.3 to 4.2.11.
- [Commits](django/django@4.2.3...4.2.11)

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

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

Author: dependabot[bot]

mysite/requirements.txt

@@ -3,6 +3,6 @@ coreapi==2.3.1
 django-cors-headers==3.6.0
 djangorestframework==3.14.0
 django-sslserver==0.22
-Django==4.2.3
+Django==4.2.11
 six==1.15.0
 urllib3===1.26.17