DEV: Upgrade Rails to version 7.1

---------

Co-authored-by: Jarek Radosz <jradosz@gmail.com>

config/environments/development.rb

@@ -99,4 +99,11 @@ Discourse::Application.configure do
   end
 
   config.hosts << /\A(([a-z0-9-]+)\.)*localhost(\:\d+)?\Z/
+
+  config.generators.after_generate do |files|
+    parsable_files = files.filter { |file| file.end_with?(".rb") }
+    unless parsable_files.empty?
+      system("bundle exec rubocop -A --fail-level=E #{parsable_files.shelljoin}", exception: true)
+    end
+  end
 end