deps: update orghierarchy to git main version

Do not merge, please.

Refs: RATYK-207

Author: voneiden

pyproject.toml

@@ -23,7 +23,7 @@ dependencies = [
     "django-modeltranslation",
     "django-mptt",
     "django-munigeo",
-    "django-orghierarchy",
+    "django-orghierarchy@git+https://github.com/City-of-Helsinki/django-orghierarchy.git",
     # Pinned: django-parler 2.4 replaced `unique_together` on translation models
     # with a named `UniqueConstraint`, which makes `makemigrations` detect drift
     # for the third-party munigeo app (whose migrations still use