Changes to Get Stake Accounts

the code response's property type changed from string to integer, and format from no format to int32 for status 401

the code response's property type changed from string to integer, and format from no format to int32 for status 500

removed the optional property details from the response with the 401 status

removed the optional property details from the response with the 500 status

removed the optional property pagination/next_page_token from the response with the 200 status

removed the optional property pagination/prev_page_token from the response with the 200 status

added the required property pagination/page to the response with the 200 status

added the required property pagination/per_page to the response with the 200 status

added the required property pagination/total to the response with the 200 status