Update Bot API to 9.3

This update implements features from Telegram Bot API versions 8.3, 9.0, 9.1, 9.2, and 9.3.

New Features:

• Business Accounts: Support for managing business connections, messages, and profile settings.
• Gifts: New entities and methods for managing and sending gifts (regular and unique).
• Checklists: Full support for checklist messages and interactions.
• Stories: Methods for posting, editing, deleting, and reposting stories.
• Direct Messages: Support for direct messages in channels and topics.
• Suggested Posts: Functionality for handling suggested posts in channels.
• Paid Media: Support for paid media interactions.
• Telegram Premium: Ability to gift Premium subscriptions.
• General Updates:
  • Video covers and start timestamps.
  • User rating and star balance methods.
  • Updates to Chat and User objects.

Added Classes:

• Entities for Business (BusinessBotRights, etc.)
• Entities for Gifts (Gift, UniqueGift, OwnedGift, etc.)
• Entities for Checklists (Checklist, ChecklistTask, etc.)
• Entities for Stories (StoryArea, InputStoryContent, etc.)
• Entities for Payments (StarAmount, AffiliateInfo, etc.)
• Helper entities like InputProfilePhoto, AcceptedGiftTypes.

Updated Files:

• src/Request.php: Added all new API methods and updated existing ones with new parameters.
• src/Telegram.php: Updated internal logic (though minimal changes required here).
• src/Entities/*.php: Updated existing entities (Message, Chat, User, etc.) to support new fields.

All changes follow the project's structure and conventions.