update slot resume pointers for step 7861

slots/13/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:13", "checkpoint": "slots/13/checkpoint-2978", "step": 2978, "updated_at": 1776407284}
+{"worker_id": "slot:13", "checkpoint": "slots/13/checkpoint-7861", "step": 7861, "updated_at": 1776417208}