fix: udpate test cases for new dashboard configs

apps/emqx_dashboard/test/emqx_dashboard_SUITE.erl

@@ -75,7 +75,7 @@ end_per_suite(_Config) ->
     mria:stop().
 
 set_special_configs(emqx_management) ->
-    Listeners = [#{protocol => http, port => 8081}],
+    Listeners = #{http => #{port => 8081}},
     Config = #{listeners => Listeners,
                applications => [#{id => "admin", secret => "public"}]},
     emqx_config:put([emqx_management], Config),

apps/emqx_dashboard/test/emqx_dashboard_api_test_helpers.erl

@@ -32,8 +32,11 @@ set_default_config() ->
     set_default_config(<<"admin">>).
 
 set_default_config(DefaultUsername) ->
-    Config = #{listeners => [#{protocol => http,
-                               port => 18083}],
+    Config = #{listeners => #{
+                  http => #{
+                    port => 18083
+                  }
+               },
                default_username => DefaultUsername,
                default_password => <<"public">>,
                i18n_lang => en