Update telegram-alpha to 3.00.1.100463,512 (#4138)

Casks/telegram-alpha.rb

@@ -1,11 +1,11 @@
 cask 'telegram-alpha' do
-  version '3.00.1.100410,508'
+  version '3.00.1.100463,512'
-  sha256 '98c0f884d4e9c356f0db3be4b2ee22fe1cadcb904c81c2af3b46177497fab066'
+  sha256 '43a389d786e441d46fc7aaca15342590f97cb22dc3b3760afd7b25e7cbe5312a'
 
   # 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: '46277f5f22dfd5475925ea0e99dbae7ccfcbe82d8941b2df296bda8c63ec97d1'
+          checkpoint: 'f4b3a8657b287e68fabc6973e239f36623d326ebea2a9e43f0c9a66eb8f5efdc'
   name 'Telegram for macOS'
   name 'Telegram Swift'
   homepage 'https://macos.telegram.org/'