add ps5 fw check

[FlexBy420]

PS5 game updates from my research appear to be using hmac key per title id rather than one hmac key for every title id like in previous console, so adding PS5 game updates support would require a db of hmac keys.

[AphelionWasTaken]

I'm not sure I want to merge this as-is. Users may still be inclined to search for PS5 game updates, so there needs to be some handling for that at the very least.

Ideally I'd like to add this with PS5 title update functionality. What makes you think the games are using unique hmac keys? I had asked DH and he mentioned that only the first few digits of the hmac have been decrypted so far.

The hash/key in the URL for each game update will be different, like with the PS4 and PS Vita. That is a product of the title id and the hmac key.

[FlexBy420]

Seen around some jailbreaking forums etc. that the update list for game is fetched from some .json inside the game files and iirc it's computed from UUID?
Either way will add some message that ps5 game updates are not yet supported when user tries to search for title id.