update slot resume pointers for step 7725

slots/19/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:19", "checkpoint": "slots/19/checkpoint-3808", "step": 3808, "updated_at": 1776408448}
+{"worker_id": "slot:19", "checkpoint": "slots/19/checkpoint-7725", "step": 7725, "updated_at": 1776416923}