Re-generate Spring binstubs for updated version of Spring

Prevents output like this:

    Array values in the parameter are deprecated. Please use a String or nil.
    An Array was passed in from bin/rspec:3:in `load'

1 files changed, 5 insertions, 0 deletions

diff --git a/bin/rake b/bin/rake
index 17240489f64..d87d5f57810 100755
--- a/bin/rake
+++ b/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