Bump django from 4.2.11 to 4.2.15

Bumps [django](https://github.com/django/django) from 4.2.11 to 4.2.15.
- [Commits](django/django@4.2.11...4.2.15)

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

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

requirements.txt

@@ -12,7 +12,7 @@ coreapi==2.3.3
 crispy-bootstrap4==2022.1
 cyvcf2==0.30.28
 deprecation==2.1.0
-Django==4.2.11
+Django==4.2.15
 django-amazon-ses==4.0.1
 django-auditlog==3.0.0
 django_autocomplete_light==3.9.1