Uses cargo-zigbuild to target glibc 2.31 for maximum compatibility:
- Raspberry Pi OS Bullseye and newer
- DietPi, Armbian, Ubuntu 22.04+
Triggered by qbzd-v* tags or manual dispatch.
Produces two binaries: qbzd-linux-x86_64, qbzd-linux-aarch64.
Creates pre-release on tag push.
cc