update slot resume pointers for step 2251

slots/7/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:7", "checkpoint": "slots/7/checkpoint-739", "step": 739, "updated_at": 1776397535}
+{"worker_id": "slot:7", "checkpoint": "slots/7/checkpoint-2251", "step": 2251, "updated_at": 1776405695}