poetry bot: bump django-filter from 21.1 to 23.5

Bumps [django-filter](https://github.com/carltongibson/django-filter) from 21.1 to 23.5.
- [Release notes](https://github.com/carltongibson/django-filter/releases)
- [Changelog](https://github.com/carltongibson/django-filter/blob/main/CHANGES.rst)
- [Commits](carltongibson/django-filter@21.1...23.5)

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

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

pyproject.toml

@@ -19,7 +19,7 @@ django-cors-headers = "^3.14.0"
 django-environ = "^0.9.0"
 django-extensions = "^3.2.3"
 django-fieldsets-with-inlines = { git = "https://github.com/raphodn/django-fieldsets-with-inlines.git", branch = "master" }
-django-filter = "^21.1"
+django-filter = "^23.5"
 django-formtools = "^2.5.1"
 django-htmx = "^1.17.3"
 django-libsass = "^0.9"