Changes to List application announcements for the bot

api operation id listAppAnnouncements was added

the endpoint scheme security BotToken was added to the API

the endpoint scheme security ApiKeyAuth was removed from the API

added the new enum value to the query request parameter status

removed the non-success response with the status 400

removed the non-success response with the status 401

the response property items became required for the status 200

the response property items/items/created_at became required for the status 200

the response property items/items/id became required for the status 200

the response property items/items/starts_at became required for the status 200

the response property items/items/status became required for the status 200

the response property items/items/subtitle became required for the status 200

the response property items/items/target became required for the status 200

the response property items/items/title became required for the status 200

the response property items/items/updated_at became required for the status 200