riscv64 distribution?

Hi @taku910 , you recently reverted a change made by @gounthar adding riscv64 in .github/workflows/wheel.yml. I don't see any explanation in the commit message. What is the rationale behind the revert? Can I help adding it back? Not sure if the reason was related to QEMU, but RISE now provide for free, native riscv64 runners (https://riseproject.dev/2026/03/24/announcing-the-rise-risc-v-runners-free-native-risc-v-ci-on-github/). I can also help you to set this up.

I am working with RISE to help spread riscv64 adoption in the python ecosystem, and we would love to see sentencepiece distribute riscv64 wheels. FYI, waiting for sentencepiece to distribute it directly, we build test and deploy a riscv64 wheel in a public registry see https://riseproject.gitlab.io/python/wheel_builder/packages/sentencepiece.html.