sentinel 1.8.6 持久化数据到nacos配置中心，修改规则刷新页面数据有延迟

## Issue Description
sentinel 1.8.6 数据持久化nacos，dashboard页面刷新还是修改之前的数据，再次刷新后正常
Type: *bug report*

### Describe what happened
数据保存nacos后数据不实时刷新

### Describe what you expected to happen
dashboard修改规则，刷新页面后实时更新修改后的内容

### How to reproduce it (as minimally and precisely as possible)

1. 实现DynamicRulePublisher>后重写： public void publish(String app, T rules) throws Exception {
AssertUtil.notEmpty(app, "app name cannot be empty");
if (rules == null) {
return;
}

String dataId = app + this.getDataIdPostfix();
String groupId = nacosProperties.getGroupId();

log.info("publish; dataId: {},groupId: {},rules: {}",dataId,groupId,rules);

nacosConfigService.publishConfig(dataId,groupId, converter.convert(rules), ConfigType.JSON.getType());
}
2. FlowController 代码：
public Result> apiQueryMachineRules(@RequestParam String app) {

if (StringUtil.isEmpty(app)) {
return Result.ofFail(-1, "app can't be null or empty");
}
try {
List rules = ruleProvider.getRules(app);
if (rules != null && !rules.isEmpty()) {
for (FlowRuleEntity entity : rules) {
entity.setApp(app);
if (entity.getClusterConfig() != null && entity.getClusterConfig().getFlowId() != null) {
entity.setId(entity.getClusterConfig().getFlowId());
}
}
}
rules = repository.saveAll(rules);
return Result.ofSuccess(rules);
} catch (Throwable throwable) {
logger.error("Error when querying flow rules", throwable);
return Result.ofThrowable(-1, throwable);
}
}
public Result apiUpdateFlowRule(@PathVariable("id") Long id,
@RequestBody FlowRuleEntity entity) {
if (id == null || id <= 0) {
return Result.ofFail(-1, "Invalid id");
}
FlowRuleEntity oldEntity = repository.findById(id);
if (oldEntity == null) {
return Result.ofFail(-1, "id " + id + " does not exist");
}
if (entity == null) {
return Result.ofFail(-1, "invalid body");
}

entity.setApp(oldEntity.getApp());
entity.setIp(oldEntity.getIp());
entity.setPort(oldEntity.getPort());
Result checkResult = checkEntityInternal(entity);
if (checkResult != null) {
return checkResult;
}

entity.setId(id);
Date date = new Date();
entity.setGmtCreate(oldEntity.getGmtCreate());
entity.setGmtModified(date);
try {
entity = repository.save(entity);
if (entity == null) {
return Result.ofFail(-1, "save entity fail");
}
publishRules(oldEntity.getApp());
} catch (Throwable throwable) {
logger.error("Failed to update flow rule", throwable);
return Result.ofThrowable(-1, throwable);
}
return Result.ofSuccess(entity);
}
3. 页面操作修改刷新页面数据还是修改前的，强刷页面后正常显示