Changes to List caller-administered ListingSources

the items/listingSourceId response's property format changed from uuid to no format for status 200

removed the required property source/sourceType from the response with the 401 status

removed the required property source/sourceType from the response with the 403 status

removed the required property source/sourceType from the response with the 500 status

removed the required property source/sourceType from the response with the 503 status

added the required property source/type to the response with the 401 status

added the required property source/type to the response with the 403 status

added the required property source/type to the response with the 500 status

added the required property source/type to the response with the 503 status