@Override
    protected List<Integer> replicaIds() {
        return Arrays.asList(broker0, broker1);
    }
Expand the replication factor of the topic by changing the replica list from 0 to 0, 1
@return the replica-ids of the topic
storage/src/test/java/org/apache/kafka/tiered/storage/integration/ReassignReplicaExpandTest.java