Add VSCode debugger dependencies (#5178)

* Add VSCode debugger dependencies

* constrain ruby versions

* still failing in evergreen, exclude from CI

Co-authored-by: Oleg Pudeyev <[email protected]>

Author: neilshweky

gemfiles/standard.rb

@@ -3,6 +3,14 @@ def standard_dependencies
 
   group :development do
     gem 'yard'
+
+    platform :mri do
+      # Debugger for VSCode.
+      unless ENV['CI']
+        gem 'debase'
+        gem 'ruby-debug-ide'
+      end
+    end
   end
 
   group :development, :test do