Changes to Update an appeal

removed the success response with the status 200

added the new rejected enum value to the request property appeal[status]

added the success response with the status 204

the response property created_at became required for the status 200

the response property creator_id became required for the status 200

the response property disp_id became required for the status 200

the response property id became required for the status 200

the response property qtype became required for the status 200

the response property reason became required for the status 200

the response property response became required for the status 200

the response property status became required for the status 200

the response property updated_at became required for the status 200

endpoint added