Update sketch-beta to 41,35307 (#2855)

Casks/sketch-beta.rb

@@ -1,11 +1,11 @@
 cask 'sketch-beta' do
-  version '41,35299'
-  sha256 '22be06ee43bd4d60bc2e39d6753b3d20381cccda26ac4161b18e9b3cc21a75e1'
+  version '41,35307'
+  sha256 'f767945f02a3f9f6102a086dae0d0e4a59ab39b7493309ef6373a06ac2e9283b'
 
   # hockeyapp.net/api/2/apps/0172d48cceec171249a8d850fb16276b was verified as official when first introduced to the cask
   url "https://rink.hockeyapp.net/api/2/apps/0172d48cceec171249a8d850fb16276b/app_versions/#{version.after_comma}?format=zip"
   appcast 'https://rink.hockeyapp.net/api/2/apps/0172d48cceec171249a8d850fb16276b',
-          checkpoint: '518bbc6a64d8ca9271f0fe49769185875746b713cc379c843b396d286c3358b0'
+          checkpoint: '520827c797294d1a73502b728dfb37e9b1e2220ecac1d46dfd595904e4699271'
   name 'Sketch'
   homepage 'http://bohemiancoding.com/sketch/beta/'