fix: authn bad examples

apps/emqx_authn/src/emqx_authn_api.erl

@@ -1412,6 +1412,9 @@ authenticator_examples() ->
 
 status_metrics_example() ->
     #{
+        status_metrics => #{
+            summary => <<"Authn status metrics">>,
+            value => #{
                 metrics => #{
                     matched => 0,
                     success => 0,
@@ -1440,6 +1443,8 @@ status_metrics_example() ->
                         status => connected
                     }
                 ]
+            }
+        }
     }.
 
 request_user_create_examples() ->

apps/emqx_dashboard/src/emqx_dashboard_swagger.erl

@@ -109,10 +109,7 @@ schema_with_example(Type, Example) ->
 
 -spec(schema_with_examples(hocon_schema:type(), map()) -> hocon_schema:field_schema_map()).
 schema_with_examples(Type, Examples) ->
-    %% Swagger can dynamically distinguish if there are multiple examples.
-    %% But explicitly declaring examples as plural
-    %% may cause some example structures to be incorrectly identified.
-    schema_with_example(Type, Examples).
+    hoconsc:mk(Type, #{examples => #{<<"examples">> => Examples}}).
 
 -spec(error_codes(list(atom())) -> hocon_schema:fields()).
 error_codes(Codes) ->