Added the field is_automatic_forward to the Message entity.

Author: TiiFuchs

src/Entities/Message.php

@@ -34,6 +34,7 @@
  * @method string                                 getForwardSignature()                       Optional. For messages forwarded from channels, signature of the post author if present
  * @method string                                 getForwardSenderName()                      Optional. Sender's name for messages forwarded from users who disallow adding a link to their account in forwarded messages
  * @method int                                    getForwardDate()                            Optional. For forwarded messages, date the original message was sent in Unix time
+ * @method bool                                   getIsAutomaticForward()                     Optional. True, if the message is a channel post that was automatically forwarded to the connected discussion group
  * @method ReplyToMessage                         getReplyToMessage()                         Optional. For replies, the original message. Note that the Message object in this field will not contain further reply_to_message fields even if it itself is a reply.
  * @method User                                   getViaBot()                                 Optional. Bot through which the message was sent
  * @method int                                    getEditDate()                               Optional. Date the message was last edited in Unix time