public ConfigHolder getConfigHolder(String fileName) {
        return holderMap.get(fileName);
    }
update old maps, reload local files if changed.

@param result - map pending to be added
@param holder - property holder
@param addElseRemove - if add(true) else remove(false)
@return true if changed else false.
inlong-audit/audit-common/src/main/java/org/apache/inlong/audit/file/ConfigManager.java