v2.0.0

• Drop support for symfony lower than 7;
• Support for elegram-bot-api v3;
• Make attributes repeatable;
• Added new configurable options and configuration documentation;
• Added time limit option to telegram:polling:start command;
• Command telegram:webhook:set renamed to telegram:webhook:update
• Command telegram:button:setcommands renamed to telegram:button:update;
• Removed CommandDescriptionProcessor class;
• Moved classes from TelegramBot folder to root directory;
• User in TelegramCommand replaced by chatId. This change fixed not working reply method in group;
• Other minor changes.