update slot resume pointers for step 8354

slots/10/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:10", "checkpoint": "slots/10/checkpoint-7321", "step": 7321, "updated_at": 1776443831}
+{"worker_id": "slot:10", "checkpoint": "slots/10/checkpoint-8354", "step": 8354, "updated_at": 1776469857}