0.1s not enough time for slow darwin test machine

libraries/testing/tester.cpp

@@ -47,7 +47,7 @@ namespace eosio { namespace testing {
       cfg.genesis.initial_timestamp = fc::time_point::from_iso_string("2020-01-01T00:00:00.000");
       cfg.genesis.initial_key = get_public_key( config::system_account_name, "active" );
 
-      abi_serializer::set_max_serialization_time(fc::microseconds(100*1000)); // 100ms for slow test machines
+      abi_serializer::set_max_serialization_time(fc::seconds(1)); // 1s for slow test machines
 
       for(int i = 0; i < boost::unit_test::framework::master_test_suite().argc; ++i) {
          if(boost::unit_test::framework::master_test_suite().argv[i] == std::string("--binaryen"))