Bump the all-deps group in /requirements with 3 updates

Bumps the all-deps group in /requirements with 3 updates: [django-filter](https://github.com/carltongibson/django-filter), [django-polymorphic](https://github.com/django-commons/django-polymorphic) and [faker](https://github.com/joke2k/faker).


Updates `django-filter` from 25.1 to 25.2
- [Release notes](https://github.com/carltongibson/django-filter/releases)
- [Changelog](https://github.com/carltongibson/django-filter/blob/main/CHANGES.rst)
- [Commits](carltongibson/django-filter@25.1...25.2)

Updates `django-polymorphic` from 4.11.2 to 4.11.3
- [Release notes](https://github.com/django-commons/django-polymorphic/releases)
- [Commits](django-commons/django-polymorphic@v4.11.2...v4.11.3)

Updates `faker` from 40.12.0 to 40.15.0
- [Release notes](https://github.com/joke2k/faker/releases)
- [Changelog](https://github.com/joke2k/faker/blob/master/CHANGELOG.md)
- [Commits](joke2k/faker@v40.12.0...v40.15.0)

---
updated-dependencies:
- dependency-name: django-filter
  dependency-version: '25.2'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-deps
- dependency-name: django-polymorphic
  dependency-version: 4.11.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-deps
- dependency-name: faker
  dependency-version: 40.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all-deps
...

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

Author: dependabot[bot]

requirements/requirements-optionals.txt

@@ -1,2 +1,2 @@
-django-filter==25.1
-django-polymorphic==4.11.2
+django-filter==25.2
+django-polymorphic==4.11.3

requirements/requirements-testing.txt

@@ -1,5 +1,5 @@
 factory-boy==3.3.3
-Faker==40.12.0
+Faker==40.15.0
 pytest==9.0.3
 pytest-cov==7.1.0
 pytest-django==4.12.0