Bump django from 3.2.12 to 3.2.15

Bumps [django](https://github.com/django/django) from 3.2.12 to 3.2.15.
- [Release notes](https://github.com/django/django/releases)
- [Commits](django/django@3.2.12...3.2.15)

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

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-Django==3.2.12
+Django==3.2.15
 psycopg2==2.9.2
 pywin32-ctypes==0.2.0
 sqlparse==0.4.1