Fix RuboCop offense Style/HashSyntax (Don't mix styles in the same hash) introduced in r22551 (#39862).

git-svn-id: https://svn.redmine.org/redmine/trunk@22566 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/integration/routing/plugins_test.rb

@@ -45,8 +45,8 @@ class RoutingPluginsTest < Redmine::RoutingTest
     assert_equal("/bar_plugin_articles", plugin_articles_path)
     should_route(
       'GET /attachments/plugin_articles/12/edit' => 'attachments#edit_all',
-      object_id: '12',
-      object_type: 'plugin_articles'
+      :object_id => '12',
+      :object_type => 'plugin_articles'
     )
   end
 end