Revert "no remote url on cn"

This reverts commit aa40d41a

console-api/src/update/update.service.ts

@@ -149,7 +149,7 @@ export class UpdateService extends ConsoleLogger {
     archives.forEach((a) =>
       a.fillUrl({
         cdnUrlOversize: this.cdnUrlOversize,
-        ...(isChina ? { cdnUrl: this.cdnUrlCn } : { cdnUrl: this.cdnUrl }),
+        ...(isChina ? { cdnUrl: this.cdnUrlCn, cdnUrlBackup: this.cdnUrl } : { cdnUrl: this.cdnUrl }),
       })
     );
     return archives;