update slot resume pointers for step 5160

slots/3/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:3", "checkpoint": "slots/3/checkpoint-4506", "step": 4506, "updated_at": 1776734467}
+{"worker_id": "slot:3", "checkpoint": "slots/3/checkpoint-5160", "step": 5160, "updated_at": 1776736782}