[deps] Update django-filter requirement

Updates the requirements on [django-filter](https://github.com/carltongibson/django-filter) to permit the latest version.
- [Release notes](https://github.com/carltongibson/django-filter/releases)
- [Changelog](https://github.com/carltongibson/django-filter/blob/main/CHANGES.rst)
- [Commits](carltongibson/django-filter@23.5...25.1)

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

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

Author: dependabot[bot]

setup.py

@@ -25,7 +25,7 @@
     platforms=['Platform Indipendent'],
     keywords=['django', 'rest-framework', 'gis', 'geojson'],
     packages=find_packages(exclude=['tests', 'tests.*']),
-    install_requires=['djangorestframework>=3.12,<3.16', 'django-filter>=23.5,<25.0'],
+    install_requires=['djangorestframework>=3.12,<3.16', 'django-filter>=23.5,<26.0'],
     classifiers=[
         'Development Status :: 4 - Beta',
         'Environment :: Web Environment',