Make them owned, duh

Update 0028_ocrtemplate_ocrtemplatezone.py

src/documents/models.py

@@ -2151,7 +2151,7 @@ class WorkflowRun(SoftDeleteModel):
         return f"WorkflowRun of {self.workflow} at {self.run_at} on {self.document}"
 
 
-class OcrTemplate(models.Model):
+class OcrTemplate(ModelWithOwner):
     """
     Defines a set of OCR extraction zones for a specific document type.