Merge pull request #1027 from sul-dlss/obsolete

Remove obsolete platforms

Author: dnoneill

Gemfile

@@ -51,7 +51,7 @@ end
 
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[mri mingw x64_mingw]
+  gem "debug"
   gem 'factory_bot_rails'
   gem 'rubocop', require: false
   gem 'rubocop-performance', require: false