pip: (deps): bump django-treebeard from 4.8.0 to 5.3.0

Bumps [django-treebeard](https://github.com/django-treebeard/django-treebeard) from 4.8.0 to 5.3.0.
- [Changelog](https://github.com/django-treebeard/django-treebeard/blob/master/CHANGES.md)
- [Commits](django-treebeard/django-treebeard@4.8.0...5.3.0)

---
updated-dependencies:
- dependency-name: django-treebeard
  dependency-version: 5.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

requirements-prod.txt

@@ -19,7 +19,7 @@ django-filter==24.3
 django-modelcluster==6.5
 django-permissionedforms==0.1
 django-taggit==5.0.0
-django-treebeard==4.8.0
+django-treebeard==5.3.0
 djangorestframework==3.15.2
 draftjs-exporter==5.2.0
 drf-nested-routers==0.95.0