chore(deps): bump django-model-utils in /backend in the python group (#…

…572)

Bumps the python group in /backend with 1 update: [django-model-utils](https://github.com/jazzband/django-model-utils).


Updates `django-model-utils` from 4.5.0 to 4.5.1
- [Release notes](https://github.com/jazzband/django-model-utils/releases)
- [Changelog](https://github.com/jazzband/django-model-utils/blob/4.5.1/CHANGES.rst)
- [Commits](jazzband/django-model-utils@4.5.0...4.5.1)

---
updated-dependencies:
- dependency-name: django-model-utils
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/requirements.txt

@@ -25,7 +25,7 @@ django-apscheduler==0.6.2
     # via -r requirements.in
 django-filter==24.2
     # via -r requirements.in
-django-model-utils==4.5.0
+django-model-utils==4.5.1
     # via -r requirements.in
 djangorestframework==3.15.1
     # via