(PUP-2984) Remove old installation directory when going from x64 to x86

Update dependency on puppet_for_the_win:

https://github.com/puppetlabs/puppet_for_the_win/commit/c61dda253b09bd855488f7b6dd7332fdf84d3039

Author: joshcooper

ext/build_defaults.yaml

@@ -16,7 +16,7 @@ build_gem: TRUE
 build_dmg: TRUE
 build_msi:
   puppet_for_the_win:
-    ref: '177b224087e384fc91ca0acbc6c160bf20514188'
+    ref: 'c61dda253b09bd855488f7b6dd7332fdf84d3039'
     repo: 'git://github.com/puppetlabs/puppet_for_the_win.git'
   facter:
     ref: 'refs/tags/2.2.0'