One more description for StaleChat error

CHANGELOG.md

@@ -1,3 +1,7 @@
+# Unreleased
+
+- One more description for StaleChat error.
+
 # 0.8.0
 
 - Fixed `#reply_with`, now it sets `reply_to_message_id` as it's supposed to.

lib/telegram/bot.rb

@@ -13,6 +13,7 @@ module Telegram
     # check response.
     class StaleChat < Error
       DESCRIPTIONS = [
+        'Bot was blocked',
         'bot was kicked',
         "can't write to",
         'group chat is deactivated',

spec/telegram/bot_spec.rb

@@ -17,6 +17,9 @@ RSpec.describe Telegram::Bot do
         expect(subject.call(
           'description' => 'Bad request: group chat is deactivated'
         )).to eq true
+        expect(subject.call(
+          'description' => 'Forbidden: Bot was blocked by the user'
+        )).to eq true
       end
     end
   end