RISC-V images

[mmoll]

Hi,

I'm trying to build k3s on linux/riscv64 natively. The following imges can't be pulled for that architecture:

• docker.io/rancher/mirrored-library-busybox:1.37.0
• docker.io/rancher/mirrored-library-traefik:3.6.7
• docker.io/rancher/mirrored-metrics-server:v0.8.1
• docker.io/rancher/mirrored-pause:3.6

busybox and traefik are available for riscv64, but seem not be synced.

The other's seem to be older rancher images, but I can't figure out where to direct PRs to.