Add gis ClosestPoint (#1968)

Author: q0w

django-stubs/contrib/gis/db/models/functions.pyi

@@ -75,6 +75,10 @@ class BoundingCircle(OracleToleranceMixin, GeomOutputGeoFunc):
 class Centroid(OracleToleranceMixin, GeomOutputGeoFunc):
     arity: int
 
+class ClosestPoint(GeomOutputGeoFunc):
+    arity: int
+    geom_param_pos: tuple[int, int]
+
 class Difference(OracleToleranceMixin, GeomOutputGeoFunc):
     arity: int
     geom_param_pos: Any

scripts/stubtest/allowlist_todo_django50.txt

@@ -65,7 +65,6 @@ django.contrib.gis.db.models.Prefetch.get_current_querysets
 django.contrib.gis.db.models.Q.identity
 django.contrib.gis.db.models.Value.allowed_default
 django.contrib.gis.db.models.When.allowed_default
-django.contrib.gis.db.models.functions.ClosestPoint
 django.contrib.gis.forms.BaseForm._html_output
 django.contrib.gis.forms.BaseModelFormSet.save_existing
 django.contrib.gis.forms.BoundField.get_context