Bug#1123801: Please package a driver supporting Blackwell GPUs

[Lukas Kropatschek]

I'm using nvidia-open-580.126.20 from NVIDIA's cuda repo[1] and it 
builds fine with dkms against Linux 6.12 from trixie stable.

But since NVIDIA's cuda repo uses outdated signing for their packages 
I'd be more than happy to see 580 in the backports.

[1] 
https://developer.download.nvidia.com/compute/cuda/repos/debian12/x86_64/