Update telegram-alpha to 3.6-109999,725 (#4898)

Casks/telegram-alpha.rb

@@ -1,11 +1,11 @@
 cask 'telegram-alpha' do
-  version '3.6-109911,723'
-  sha256 '13006c16a95b08e0690e871a0bb083fd90ef3a51629fc98e88bd38e960613ecf'
+  version '3.6-109999,725'
+  sha256 'f8ea52631a556a80951f61e5c4797206ba04ee5af1325da4050243eceb7a9bd5'
 
   # hockeyapp.net/api/2/apps/6ed2ac3049e1407387c2f1ffcb74e81f was verified as official when first introduced to the cask
   url "https://rink.hockeyapp.net/api/2/apps/6ed2ac3049e1407387c2f1ffcb74e81f/app_versions/#{version.after_comma}?format=zip"
   appcast 'https://rink.hockeyapp.net/api/2/apps/6ed2ac3049e1407387c2f1ffcb74e81f',
-          checkpoint: '077f286237547522557cd94e6d66d3ceb5699b6d0eefae7a9917b641f0f5b07e'
+          checkpoint: 'a2b5cac1dc9bf1cf05f9bd4017d428ca7cf90598a6ca4af198f1faf72edcbafc'
   name 'Telegram for macOS'
   name 'Telegram Swift'
   homepage 'https://macos.telegram.org/'