Regenerate bin stubs

These are the new binstubs available in the our current `spring`
version, which make specs run much faster 😌

bin/rails

@@ -1,4 +1,9 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
+end
 APP_PATH = File.expand_path('../../config/application', __FILE__)
 require_relative '../config/boot'
 require 'rails/commands'

bin/rake

@@ -1,4 +1,9 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
+end
 require_relative '../config/boot'
 require 'rake'
 Rake.application.run

bin/rspec

@@ -1,4 +1,9 @@
 #!/usr/bin/env ruby
+begin
+  load File.expand_path('../spring', __FILE__)
+rescue LoadError => e
+  raise unless e.message.include?('spring')
+end
 # frozen_string_literal: true
 #
 # This file was generated by Bundler.

bin/spring

@@ -1,17 +1,17 @@
 #!/usr/bin/env ruby
-# frozen_string_literal: true
-#
-# This file was generated by Bundler.
-#
-# The application 'spring' is installed as part of a gem, and
-# this file is here to facilitate running it.
-#
 
-require "pathname"
-ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../../Gemfile",
-  Pathname.new(__FILE__).realpath)
+# This file loads spring without using Bundler, in order to be fast.
+# It gets overwritten when you run the `spring binstub` command.
 
-require "rubygems"
-require "bundler/setup"
+unless defined?(Spring)
+  require 'rubygems'
+  require 'bundler'
 
-load Gem.bin_path("spring", "spring")
+  lockfile = Bundler::LockfileParser.new(Bundler.default_lockfile.read)
+  spring = lockfile.specs.detect { |spec| spec.name == "spring" }
+  if spring
+    Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
+    gem 'spring', spring.version
+    require 'spring/binstub'
+  end
+end