test(authn): authn is_superuser default value false.

apps/emqx_authn/test/emqx_authn_mongo_SUITE.erl

@@ -225,9 +225,10 @@ t_is_superuser(_Config) ->
         {null, false},
         {false, false},
         {0, false},
+        {<<"val">>, false},
 
         {<<"1">>, true},
-        {<<"val">>, true},
+        {<<"123">>, true},
         {1, true},
         {123, true},
         {true, true}

apps/emqx_authn/test/emqx_authn_pgsql_SUITE.erl

@@ -243,7 +243,7 @@ t_is_superuser(_Config) ->
         {is_superuser_str, "", false},
         {is_superuser_str, null, false},
         {is_superuser_str, "1", true},
-        {is_superuser_str, "val", true},
+        {is_superuser_str, "val", false},
 
         {is_superuser_int, 0, false},
         {is_superuser_int, null, false},