Changes to Get payment transaction

the query request parameter action was restricted to a list of enum values

query request parameter action list-of-types was narrowed by removing types null

query request parameter timestamp list-of-types was narrowed by removing types null

added the new enum value payment to the query request parameter action

added the new enum value refund to the query request parameter action

for the query request parameter action, the type was generalized from no type to string

for the query request parameter timestamp, the type was generalized from no type to string, and format from no format to date-time

the endpoint scheme security PersonalAccessTokenAuth was added to the API

endpoint added