v3: CommandInteraction Doesn't Support Attachment Options

[Benbebop]

You cant unmarshal an attachment option on a CommandInteraction.

r.AddFunc("blabla", func(ctx context.Context, data cmdroute.CommandData) *api.InteractionResponseData {
	var options = struct {
		Attachment discord.AttachmentID `discord:"attachment"`
	}{}
	if err := data.Options.Unmarshal(&options); err != nil {
		log.Fatalln(err)
	}
}

option "attachment" expecting type 10, got 11