Update xaos to 3.6 (Homebrew#31354)

Author: gobinathm

Diff for: Casks/xaos.rb

@@ -5,7 +5,7 @@
   # sourceforge.net/xaos was verified as official when first introduced to the cask
   url "https://downloads.sourceforge.net/xaos/xaos-#{version}-macosx.dmg"
   appcast 'https://sourceforge.net/projects/xaos/rss',
-          checkpoint: '146ea58dc7acf2fae163644fdede7c5da1caacf4c84c3f1c3745a99b7f38a1c6'
+          checkpoint: '072ac467c33853bbe0929236999bb3e0e273a0d5ef62d6444d63ef3d8aeeed0d'
   name 'GNU XaoS'
   homepage 'http://matek.hu/xaos/doku.php'