fix(deletion): Delete group history in chunks (#89740)

Some groups have an excessive number of activity rows, and their deletion does not
complete.

Author: armenzg

src/sentry/deletions/defaults/grouphistory.py

@@ -21,7 +21,14 @@ def chunk(self) -> bool:
             return super().chunk()
 
         for group_id in group_ids:
-            # Delete all history records for a single group
-            self.model.objects.filter(group_id=group_id).delete()
+            # Delete history records for a single group in chunks of 10000
+            queryset = self.model.objects.filter(group_id=group_id)
+            while True:
+                # Get IDs for the first 10000 records
+                chunk_ids = list(queryset.order_by("id").values_list("id", flat=True)[:10000])
+                if not chunk_ids:
+                    break
+                # Delete records for these IDs
+                self.model.objects.filter(id__in=chunk_ids).delete()
 
         return False