Changes to Accept Join

removed the success response with the status 200

the endpoint scheme security ClusterKeyAuth was added to the API

the endpoint scheme security BearerAuth was removed from the API

added the non-success response with the status 401

added the non-success response with the status 403

added the non-success response with the status 409

added the non-success response with the status 413

added the non-success response with the status 503

endpoint added

api path removed without deprecation