Changes to Update an order

the paymentMethodId request property type changed from string to integer, and format from no format to int32

deleted the header request parameter Content-Type

removed the request property taxRate

removed the optional property message from the response with the 200 status

removed the optional property order from the response with the 200 status

removed the optional property success from the response with the 200 status

api operation id 31-update-an-order removed and replaced with update-an-order

added the non-success response with the status 422

added the optional property errors to the response with the 200 status

added the optional property responseData to the response with the 200 status