refactor: move require to toplevel

Author: mame

lib/typeprof/cli.rb

@@ -1,4 +1,5 @@
 require "optparse"
 require "pathname"
+require "io/console"
 
 require_relative "cli/cli"

lib/typeprof/cli/cli.rb

@@ -1,5 +1,3 @@
-require "io/console"
-
 module TypeProf::CLI
   class CLI
     def initialize(argv)