chore: update the app template to test the beta version

Author: did

template.rb

@@ -6,9 +6,9 @@
 end
 
 # Puma 5.x can't serve files generated by Vite 🤷🏻
-gsub_file 'Gemfile', /gem "puma", "~> 5\.\d"/, 'gem "puma", "~> 6.4"'
+gsub_file 'Gemfile', /gem "puma", "~> 5\.\d"/, 'gem "puma", "~> 6.6"'
 
-gem 'maglevcms', '~> 1.8.0'
+gem 'maglevcms', '~> 2.0.0.beta1'
 gem 'maglevcms-hyperui-kit', '~> 1.2.0'
 gem 'image_processing', '~> 1.2'