We are facing the same issue. We have been attempting to reach out to Epic, but we have not yet received a response. Additionally, we have not been able to locate relevant information on the PS DevNet forums. If you come across any solutions or information, kindly inform us, and likewise, if we discover any appropriate resources, we will keep you updated.
To make a game for PS5 you need a special kit from Sony to do so quote " For game studios to develop PS4 and PS5 titles, they need a special kit provided by Sony . These developer kits, or devkits, are a collection of tools and frameworks bundled up into a concise package in the form of hardware to enable the game’s development process." End qoute