增加rpc通讯超时时间

lib/client_base.dart

@@ -15,7 +15,7 @@ const _C_DIO_FUTURE_ERR_KEYWORDS = "browser_adapter";
 class JsonRpcClientBase {
   /// 默认超时时间
   // ignore: non_constant_identifier_names
-  static int DEAULT_TIMEOUT = 3000;
+  static int DEAULT_TIMEOUT = 5000;
 
   late int _timeout;