update slot resume pointers for step 8036

slots/15/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:15", "checkpoint": "slots/15/checkpoint-5797", "step": 5797, "updated_at": 1776440230}
+{"worker_id": "slot:15", "checkpoint": "slots/15/checkpoint-8036", "step": 8036, "updated_at": 1776469134}