update slot resume pointers for step 5174

slots/18/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:18", "checkpoint": "slots/18/checkpoint-4508", "step": 4508, "updated_at": 1776734648}
+{"worker_id": "slot:18", "checkpoint": "slots/18/checkpoint-5174", "step": 5174, "updated_at": 1776737261}