Update telegram-alpha to 3.00.1.100253,503 (#4125)

Casks/telegram-alpha.rb

@@ -1,11 +1,11 @@
 cask 'telegram-alpha' do
-  version '3.00.1.100180,482'
+  version '3.00.1.100253,503'
-  sha256 'f814836bafd79a48a744cec7a0da1063b7637d498c330efa83df6dd1aad03052'
+  sha256 '59fb0dd7285a4d1d1e9728209fe3d1ca20be9f9394565faf5003a1c835d62d40'
 
   # 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: '1a2b93f2171e6929c9bf0fae58c5e9c25fa847af9e1c5ea7161380ab14ac3bbd'
+          checkpoint: 'b78dd43529b64aeca08fab6fbe42a1650ac42afc3dd6b702ad02f513380beafc'
   name 'Telegram for macOS'
   name 'Telegram Swift'
   homepage 'https://macos.telegram.org/'