update slot resume pointers for step 7912

slots/10/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:10", "checkpoint": "slots/10/checkpoint-7311", "step": 7311, "updated_at": 1776745479}
+{"worker_id": "slot:10", "checkpoint": "slots/10/checkpoint-7912", "step": 7912, "updated_at": 1776774638}