Fix Rubocop offenses

Author: n-rodriguez

lib/simple_navigation_bootstrap/bootstrap_base.rb

@@ -28,8 +28,8 @@ def render(item_container) # rubocop:disable Metrics/AbcSize, Metrics/MethodLeng
     private
 
 
-      def render_item(*args)
-        SimpleNavigationBootstrap::RenderedItem.new(*args).to_s
+      def render_item(*)
+        SimpleNavigationBootstrap::RenderedItem.new(*).to_s
       end