Support Bot API 7.3 (may 6 2024)

[bernard-ng]

• Added support for InlineKeyboardMarkup with url, login_url, and callback_game buttons for messages sent on behalf of a business account.
• Added the field via_join_request to the class ChatMemberUpdated.
• Added support for live locations that can be edited indefinitely, allowing 0x7FFFFFFF to be used as live_period.
• Added the parameter live_period to the method editMessageLiveLocation.
• Added the field question_entities to the class Poll.
• Added the field text_entities to the class PollOption.
• Added the parameters question_parse_mode and question_entities to the method sendPoll.
• Added the class InputPollOption and changed the type of the parameter options in the method sendPoll to Array of InputPollOption.
• Added the classes ChatBackground, BackgroundType, BackgroundFill and the field chat_background_set of type ChatBackground to the class Message, describing service messages about background changes.
• Split out the class ChatFullInfo from the class Chat and changed the return type of the method getChat to ChatFullInfo.
• Added the field max_reaction_count to the class ChatFullInfo.
• Documented that .MP3 and .M4A files can be used as voice messages.