Add pre_checkout_query to PAYLOAD_TYPES (#238)

* Update Bot API version from 7.5 to 7.7
- Add new method: sendPaidMedia

* Add pre_checkout_query to PAYLOAD_TYPES

- Added pre_checkout_query to updates_controller.rb
- Updated tests in updates_controller_spec.rb
- Updated tests in typed_update_spec.rb
- Updated CHANGELOG.md for Bot API 7.7 and pre_checkout_query

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Unreleased
 
+- Update to Bot API 7.7
+- Added `pre_checkout_query` to PAYLOAD_TYPES
+
 # 0.16.2
 
 - Update to Bot API 7.3

lib/telegram/bot/updates_controller.rb

@@ -112,6 +112,7 @@ class UpdatesController < AbstractController::Base # rubocop:disable Metrics/Cla
         chat_join_request
         chat_boost
         removed_chat_boost
+        pre_checkout_query
       ].freeze)
 
       class << self

spec/telegram/bot/updates_controller/typed_update_spec.rb

@@ -28,6 +28,7 @@
       message_reaction_count
       chat_boost
       removed_chat_boost
+      pre_checkout_query
     ]).
       map { |x| [x, Telegram::Bot::Types.const_get(x.camelize)] }.to_h.
       merge(

spec/telegram/bot/updates_controller_spec.rb

@@ -49,6 +49,7 @@ def stub_payload(*fields)
       callback_query
       poll_answer
       chat_join_request
+      pre_checkout_query
     ]
     (described_class::PAYLOAD_TYPES - custom_payload_types).each do |type|
       context "when payload is #{type}" do