Introducing the URLParameterValue field on all marketing activities and aligned types on userErrors in the Marketing Activity API

As of API version 2024-07, you can use the url_parameter_value as a tracking parameter in the MarketingActivityCreate and MarketingActivityUpdate mutations. This feature is currently available on a limited basis to some partners only. UTMs should continue to be used for most partners' tracking parameters.

Additionally, MarketingActivityUserError will be the required type on the user_errors field for the MarketingEngagementCreate mutation. This will match the user_error types of the other mutations that belong to the Marketing Activity and Engagements API.