chore: add gems that will no longer be bundled in 3.5.0

Author: ElMassimo

gemfiles/Gemfile-rails-edge

@@ -5,6 +5,7 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 gem 'rails', github: 'rails/rails', branch: 'main'
 
 gem 'mutex_m'
+gem 'ostruct'
 
 gemspec path: '../vite_ruby'
 gemspec path: '../vite_rails'