Changes to List Playbook Tasks

added the new declined enum value to the items/items/status response property for the response status 200

added the enum value declined to the property anyOf[subschema #1: PlaybookTaskStatus]/ of the query request parameter status

added the optional property items/items/guest_notified_at to the response with the 200 status

added the optional property items/items/resolution_note to the response with the 200 status

added the optional property items/items/text_session_id to the response with the 200 status

added the optional property items/items/highlight_span to the response with the 200 status

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

response property items/items/created_at list-of-types was widened by adding types null to media type application/json of response 200

added the optional property detail/items/ctx to the response with the 422 status

added the optional property detail/items/input to the response with the 422 status