private void onlinePulsarTopic(InLongTopic topic) {
        if (!checkAndCreateNewPulsarClient(topic)) {
            LOGGER.error("checkAndCreateNewPulsarClient error:{}", topic);
            return;
        }
        createNewFetcher(topic);
    }
online new inlong topic

@param newSubscribedInLongTopics List
@param reallyNewTopic List
inlong-sdk/sort-sdk/src/main/java/org/apache/inlong/sdk/sort/manager/InlongSingleTopicManager.java