require Shakapacker so constant will be defined

Judahmeek · Judahmeek · commit 40f3cc1d142f · 2025-01-16T23:10:29.000-06:00
diff --git a/spec/react_on_rails/packer_utils_spec.rb b/spec/react_on_rails/packer_utils_spec.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative "spec_helper"
+require "shakapacker"
 
 module ReactOnRails
   describe PackerUtils do
