test(gw): fix gateway flaky tests

apps/emqx_gateway/test/emqx_gateway_authz_SUITE.erl

@@ -79,7 +79,7 @@ end_per_suite(Config) ->
     emqx_gateway_auth_ct:stop(),
     ok = emqx_authz_test_lib:restore_authorizers(),
     emqx_config:erase(gateway),
-    emqx_mgmt_api_test_util:end_suite([cowboy, emqx_authz, emqx_authn, emqx_gateway]),
+    emqx_mgmt_api_test_util:end_suite([emqx_gateway, emqx_authn, emqx_authz, emqx_conf]),
     Config.
 
 init_per_testcase(_Case, Config) ->

apps/emqx_gateway/test/emqx_sn_protocol_SUITE.erl

@@ -103,7 +103,7 @@ init_per_suite(Config) ->
 
 end_per_suite(_) ->
     {ok, _} = emqx:remove_config([gateway, mqttsn]),
-    emqx_mgmt_api_test_util:end_suite([emqx_gateway, emqx_auhtn, emqx_conf]).
+    emqx_mgmt_api_test_util:end_suite([emqx_gateway, emqx_authn, emqx_conf]).
 
 restart_mqttsn_with_subs_resume_on() ->
     Conf = emqx:get_raw_config([gateway, mqttsn]),