Update machete to 0.0.40

Author: cf-buildpacks-eng

cf.Gemfile

@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 ruby '2.2.3'
 
-gem 'machete', git: 'https://github.com/cloudfoundry/machete', tag: 'v0.0.37'
+gem 'machete', git: 'https://github.com/cloudfoundry/machete', tag: 'v0.0.40'
 gem 'buildpack-packager', git: 'https://github.com/cloudfoundry/buildpack-packager', tag: 'v2.2.8'
 gem 'rspec'
 gem 'rspec-instafail'

cf.Gemfile.lock

@@ -10,10 +10,10 @@ GIT
 
 GIT
   remote: https://github.com/cloudfoundry/machete
-  revision: 8a5b6d0c1160f4c7c9e83c552ebb773f074723b9
-  tag: v0.0.37
+  revision: b36d224f16e787f1178bb7096d5cb45ef9774b87
+  tag: v0.0.40
   specs:
-    machete (0.0.37)
+    machete (0.0.40)
       httparty
 
 GEM