Chore: drop set_permissions_for_object in favor of the bulk helper

The same grant rules were implemented twice, and only the bulk version
validated every action before writing, so the single-object one could leave
a partial change behind.

src/documents/consumer.py

@@ -38,7 +38,7 @@ from documents.models import StoragePath
 from documents.models import Tag
 from documents.models import WorkflowTrigger
 from documents.parsers import ParseError
-from documents.permissions import set_permissions_for_object
+from documents.permissions import set_permissions_for_objects
 from documents.plugins.base import AlwaysRunPluginMixin
 from documents.plugins.base import ConsumeTaskPlugin
 from documents.plugins.base import NoCleanupPluginMixin
@@ -958,7 +958,7 @@ class ConsumerPlugin(
                     "groups": self.metadata.change_groups or [],
                 },
             }
-            set_permissions_for_object(permissions=permissions, object=document)
+            set_permissions_for_objects(permissions, Document, [document.pk])
 
         if self.metadata.custom_fields:
             for field in CustomField.objects.filter(