Changes to List policies

added the new allowlist_v0 enum value to the data/items/type response property for the response status 200

added the new cedar_v1 enum value to the data/items/type response property for the response status 200

added the new optional query request parameter page_size

added the new optional query request parameter page_token

added the non-success response with the status 400

added the required property next_page_token to the response with the 200 status

added the new limit_exceeded enum value to the error/code response property for the response status 401

added the new limit_exceeded enum value to the error/code response property for the response status 403

added the new limit_exceeded enum value to the error/code response property for the response status 404

added the new limit_exceeded enum value to the error/code response property for the response status 500

the response's body type changed from array to object for status 200

added the required property data to the response with the 200 status

added the non-success response with the status 404

the response's body type changed from object to array for status 200

removed the required property data from the response with the 200 status

removed the non-success response with the status 404

removed the limit_exceeded enum value from the error/code response property for the response status 401

removed the limit_exceeded enum value from the error/code response property for the response status 403

removed the limit_exceeded enum value from the error/code response property for the response status 500