fix(lru): add key update length

pkg/lru/lru.go

@@ -123,6 +123,9 @@ func (lru *SingleCache) Add(key *proto.BaseKey, val structure.KeyBaseInterface)
 	}
 	if elVal, ok := lru.lruMap[key.Key]; ok {
 		lru.li.MoveToFront(elVal)
+		oldSize := elVal.Value.(structure.KeyBaseInterface).SizeByte()
+
+		lru.UpdateLruSize(structure.UpdateLength(val.SizeByte() - oldSize))
 		elVal.Value = keyBaseVal
 		return nil
 	}