test(cassandra): attempt to fix flaky test

```
=ERROR REPORT==== 29-May-2023::20:35:20.457796 ===
    id: <<"bridge:cassandra:emqx_bridge_cassandra_SUITE">>
    msg: unrecoverable_error
    reason: {8704,<<"Expected 8 or 0 byte long for date (4)">>}
=CRITICAL REPORT==== 29-May-2023::20:35:20.458850 ===
"check stage" failed: error
{assertMatch,[{module,emqx_bridge_cassandra_SUITE},
              {line,619},
              {expression,"Trace"},
              {pattern,"[ # { result := { ok , _Pid } } ]"},
              {value,[]}]}
Stacktrace: [{emqx_bridge_cassandra_SUITE,'-t_missing_data/1-fun-3-',1,
                 [{file,
                      "/emqx/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl"},
                  {line,619}]},
             {emqx_bridge_cassandra_SUITE,t_missing_data,1,
                 [{file,
                      "/emqx/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl"},
                  {line,607}]}]

=CRITICAL REPORT==== 29-May-2023::20:35:20.471872 ===
Check stage failed. Trace dump: "/emqx/_build/test/logs/ct_run.test@127.0.0.1.2023-05-29_20.34.32/snabbkaffe/1685392520460040358.log"

%%% emqx_bridge_cassandra_SUITE ==> tcp.sync.with_batch.t_missing_data: FAILED
%%% emqx_bridge_cassandra_SUITE ==> {{panic,#{msg => "Unexpected result",result => {error,check_stage_failed}}},
 [{emqx_bridge_cassandra_SUITE,t_missing_data,1,
                               [{file,"/emqx/apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl"},
                                {line,624}]},
  {test_server,ts_tc,3,[{file,"test_server.erl"},{line,1782}]},
  {test_server,run_test_case_eval1,6,[{file,"test_server.erl"},{line,1291}]},
  {test_server,run_test_case_eval,9,[{file,"test_server.erl"},{line,1223}]}]}
```

apps/emqx_bridge_cassandra/test/emqx_bridge_cassandra_SUITE.erl

@@ -606,11 +606,12 @@ t_missing_data(Config) ->
     %% to ecql driver
     ?check_trace(
         begin
-            ?wait_async_action(
-                send_message(Config, #{}),
-                #{?snk_kind := handle_async_reply, result := {error, {8704, _}}},
-                10_000
-            ),
+            {_, {ok, _}} =
+                ?wait_async_action(
+                    send_message(Config, #{}),
+                    #{?snk_kind := handle_async_reply, result := {error, {8704, _}}},
+                    30_000
+                ),
             ok
         end,
         fun(Trace0) ->