Add LogRecord class, drop PHP <8.1

src/Monolog/Handler/TelegramBotHandler.php

@@ -14,6 +14,7 @@ namespace Monolog\Handler;
 use RuntimeException;
 use Monolog\Logger;
 use Monolog\Utils;
+use Monolog\LogRecord;
 
 /**
  * Handler send logs to Telegram using Telegram Bot API.
@@ -209,7 +210,7 @@ class TelegramBotHandler extends AbstractProcessingHandler
     /**
      * @inheritDoc
      */
-    protected function write(array $record): void
+    protected function write(LogRecord $record): void
     {
         $this->send($record['formatted']);
     }