trixie riscv64 rootfs builds for kselftest

Hi,

I see here [1] that there aren't any riscv64 debian rootfs images for
NFS booting and running kselftest. Is it possible to add these builds?

I've been doing test boots of linux-next on some riscv boards and was
hoping to run kselftest on them too. This would be useful for that.

[1] https://storage.kernelci.org/images/rootfs/debian/trixie-kselftest/20260219.0/

Regards
Anirudh Srinivasan