@BeforeEach
    public void setup() {
        PolarisConfig polarisConfig = new PolarisConfig();
        ConfigFileService configFileService = new PolarisMockConfigService(new HashMap<>());
        ShenyuConfig shenyuConfig = new ShenyuConfig();
        polarisSyncDataService = new PolarisSyncDataService(polarisConfig, configFileService, null,
                Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), shenyuConfig);
    }
add test case for {@link PolarisSyncDataService}.
shenyu-sync-data-center/shenyu-sync-data-polaris/src/test/java/org/apache/shenyu/sync/data/polaris/PolarisSyncDataServiceTest.java