Family Sharing after death

muguy is correct. I didn't read down far enough where Apple says

Data that a Legacy Contact cannot access

Data that isn’t available to a Legacy Contact includes: 

• Licensed media, for example, films, music and books that the account holder has purchased

How to request access to a deceased family member's Apple account

or

Digital Legacy - Request access to a deceased friend or family member’s account

Starting in iOS 15.2, iPadOS 15.2, and macOS 12.1, Apple users can add a Legacy Contact for their Apple ID. Adding a Legacy Contact is the easiest, most secure way to give someone they trust access to the data they stored in their Apple account after they pass away. 

You cannot. The license that you have is non-transferable. I suspect that your content would be removed.