Resolved the issue where the DISCOVER_UPSTREAM configuration item alw…

…ays failed to synchronize in the http-polling configuration data sync mode; (#5889)

Co-authored-by: Vincent <[email protected]>

shenyu-sync-data-center/shenyu-sync-data-http/src/main/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefresh.java

@@ -67,7 +67,7 @@ protected boolean updateCacheIfNeed(final ConfigData<DiscoverySyncData> result)
 
     @Override
     public ConfigData<?> cacheConfigData() {
-        return GROUP_CACHE.get(ConfigGroupEnum.PROXY_SELECTOR);
+        return GROUP_CACHE.get(ConfigGroupEnum.DISCOVER_UPSTREAM);
     }
 
 }