Bump django from 3.2.12 to 3.2.13 in /docker-app

Bumps [django](https://github.com/django/django) from 3.2.12 to 3.2.13.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.2.12...3.2.13)

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

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

docker-app/requirements.txt

@@ -17,7 +17,7 @@ coverage==5.3
 cryptography==36.0.1
 defusedxml==0.7.1
 Deprecated==1.2.13
-Django==3.2.12
+Django==3.2.13
 django-allauth==0.44.0
 django-auditlog==1.0a1
 django-axes==5.28.0