test: remove async from redis ct

apps/emqx_resource/i18n/emqx_resource_schema_i18n.conf

@@ -91,7 +91,7 @@ For bridges only have ingress direction data flow, it can be set to 0 otherwise
 
   query_mode_sync_only {
     desc {
-      en: """Query mode. only support 'sync'."""
+      en: """Query mode. Only support 'sync'."""
       zh: """请求模式。目前只支持同步模式。"""
     }
     label {

lib-ee/emqx_ee_bridge/test/emqx_ee_bridge_redis_SUITE.erl

@@ -509,7 +509,7 @@ redis_connect_configs() ->
 toxiproxy_redis_bridge_config() ->
     Conf0 = ?REDIS_TOXYPROXY_CONNECT_CONFIG#{
         <<"resource_opts">> => #{
-            <<"query_mode">> => <<"async">>,
+            <<"query_mode">> => <<"sync">>,
             <<"worker_pool_size">> => <<"1">>,
             <<"batch_size">> => integer_to_binary(?BATCH_SIZE),
             <<"health_check_interval">> => <<"1s">>,
@@ -537,7 +537,7 @@ resource_configs() ->
             <<"start_timeout">> => <<"15s">>
         },
         batch_on => #{
-            <<"query_mode">> => <<"async">>,
+            <<"query_mode">> => <<"sync">>,
             <<"worker_pool_size">> => <<"1">>,
             <<"batch_size">> => integer_to_binary(?BATCH_SIZE),
             <<"start_timeout">> => <<"15s">>