test(oracle): attempt to fix flaky test

Ex: https://github.com/emqx/emqx/actions/runs/11113577939/job/30878620421?pr=13903#step:5:374

apps/emqx_bridge_oracle/test/emqx_bridge_oracle_SUITE.erl

@@ -744,6 +744,7 @@ t_missing_table(Config) ->
                     emqx_resource_manager:health_check(ResourceId)
                 )
             ),
+            ?block_until(#{?snk_kind := oracle_undefined_table}),
             MsgId = erlang:unique_integer(),
             Params = #{
                 topic => ?config(mqtt_topic, Config),