Changes to Create a dns monitor

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 400

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 401

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 402

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 403

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 404

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 409

added the new SERVICE_UNAVAILABLE enum value to the code response property for the response status 500

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 400

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 401

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 402

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 403

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 404

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 409

added the new TOO_MANY_REQUESTS enum value to the code response property for the response status 500

added the new grpc enum value to the jobType response property for the response status 200

added the non-success response with the status 429

added the non-success response with the status 503