fix: prevent yarn 2+ error in assets:precompile (#241)

Yarn's migration guide mentions that selecting which dependencies are installed (dev or prod) requires the
workspace-tools plugin.

It's now the user's responsibility to ensure any build dependencies are available when vite build is run.

vite_ruby/lib/tasks/vite.rake

@@ -86,5 +86,8 @@ if ARGV.include?('assets:precompile')
   else
     ENV['NPM_CONFIG_INCLUDE'] = 'dev'
   end
-  ENV['YARN_PRODUCTION'] = 'false'
+
+  unless ViteRuby.commands.next_yarn?
+    ENV['YARN_PRODUCTION'] = 'false'
+  end
 end

vite_ruby/lib/vite_ruby/commands.rb

@@ -71,6 +71,10 @@ def legacy_npm_version?
     `npm --version`.to_i < 7 rescue false
   end
 
+  def next_yarn?
+    `yarn --version`.to_i >= 2 rescue false
+  end
+
   # Internal: Verifies if ViteRuby is properly installed.
   def verify_install
     unless File.exist?(config.root.join('bin/vite'))