public static <T> ArrayBatchRecords<T> finishedSplit(String splitId) {
    return new ArrayBatchRecords<>(null, null, null, 0, 0, 0, Collections.singleton(splitId));
  }
Create ab ArrayBatchRecords with only finished split id

@param splitId for the split that is just exhausted
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/read/hybrid/reader/ArrayBatchRecords.java