fix: Fixed abc.GuildChannel.jump_url not working for channels without a guild_channel property

Author: mccoderpy

discord/abc.py

@@ -400,7 +400,7 @@ def mention(self):
     @property
     def jump_url(self):
         """:class:`str`: Returns a URL that allows the client to jump to the referenced channel."""
-        return f'https://discord.com/channels/{self.guild_id}/{self.id}'  # type: ignore
+        return f'https://discord.com/channels/{self.guild.id}/{self.id}'  # type: ignore
 
     @property
     def created_at(self):