[executables] use pry (instead of irb)

bin/console

@@ -2,13 +2,5 @@
 
 require "bundler/setup"
 require "self_data"
-
-# You can add fixtures and/or initialization code here to make experimenting
-# with your gem easier. You can also use a different console, if you like.
-
-# (If you use this, don't forget to add pry to your Gemfile!)
-# require "pry"
-# Pry.start
-
-require "irb"
-IRB.start
+require "pry"
+Pry.start