build(deps): bump django from 5.1.8 to 5.2.1

Bumps [django](https://github.com/django/django) from 5.1.8 to 5.2.1.
- [Commits](django/django@5.1.8...5.2.1)

---
updated-dependencies:
- dependency-name: django
  dependency-version: 5.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -2,7 +2,7 @@ asgiref==3.8.1
 certifi==2025.4.26
 charset-normalizer==3.4.2
 django-environ==0.12.0
-Django==5.1.8
+Django==5.2.1
 django-allauth[mfa]==65.7.0
 django-bootstrap5
 django-solo==2.4.0