Add a dedicated route for the 4.0 branch composer repo

Author: iMattPro

config/routes/general.yml

@@ -68,6 +68,10 @@ phpbb.titania.composer:
     path: /composer/{filename}.json
     defaults: { _controller: phpbb.titania.controller.composer:serve_file }
 
+phpbb.titania.composer.40:
+  path: /composer/40/
+  defaults: { _controller: phpbb.titania.controller.composer:serve_file, filename: packages-40 }
+
 phpbb.titania.category:
     path: /{category1}/{category2}/{category3}/{category4}
     defaults: { _controller: phpbb.titania.controller.index:display_category, category2: '', category3: '', category4: '' }