update slot resume pointers for step 4862

slots/19/latest.json

@@ -1 +1 @@
-{"worker_id": "slot:19", "checkpoint": "slots/19/checkpoint-1816", "step": 1816, "updated_at": 1776684509}
+{"worker_id": "slot:19", "checkpoint": "slots/19/checkpoint-4862", "step": 4862, "updated_at": 1776735733}