Fix debug load on TruffleRuby

Author: jeremy

bin/console

@@ -1,7 +1,10 @@
 #!/usr/bin/env ruby
 require "bundler/setup"
 require "irb"
-require "debug" rescue nil
+begin
+  require "debug"
+rescue StandardError, LoadError
+end
 require "marcel"
 
 IRB.start

test/test_helper.rb

@@ -2,7 +2,10 @@
 require 'marcel'
 require 'pathname'
 
-require 'debug' rescue nil
+begin
+  require "debug"
+rescue StandardError, LoadError
+end
 
 class Marcel::TestCase < Minitest::Test
   class << self