build(deps): bump django-filter from 2.3.0 to 2.4.0 (#239)

Bumps [django-filter](https://github.com/carltongibson/django-filter) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/carltongibson/django-filter/releases)
- [Changelog](https://github.com/carltongibson/django-filter/blob/master/CHANGES.rst)
- [Commits](https://github.com/carltongibson/django-filter/compare/2.3.0...2.4.0)

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

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

Pipfile.lock

@@ -304,11 +304,11 @@
         },
         "django-filter": {
             "hashes": [
-                "sha256:11e63dd759835d9ba7a763926ffb2662cf8a6dcb4c7971a95064de34dbc7e5af",
-                "sha256:616848eab6fc50193a1b3730140c49b60c57a3eda1f7fc57fa8505ac156c6c75"
+                "sha256:84e9d5bb93f237e451db814ed422a3a625751cbc9968b484ecc74964a8696b06",
+                "sha256:e00d32cebdb3d54273c48f4f878f898dced8d5dfaad009438fe61ebdf535ace1"
             ],
             "index": "pypi",
-            "version": "==2.3.0"
+            "version": "==2.4.0"
         },
         "django-guardian": {
             "hashes": [