Changes to List Saved Reports

added the new internal_server_error enum value to the error/type response property for the response status 500

added the new rate_limit_exceeded_error enum value to the error/type response property for the response status 429

added the new validation_error enum value to the error/type response property for the response status 400

added subschema #1 subschema #2 to the response body anyOf list for the response status 401

removed subschema #1 subschema #2 from the response body anyOf list for the response status 401