update slot resume pointers for step 7570

slots/10/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:10", "checkpoint": "slots/10/checkpoint-6310", "step": 6310, "updated_at": 1776413491}
+{"worker_id": "slot:10", "checkpoint": "slots/10/checkpoint-7570", "step": 7570, "updated_at": 1776416556}