Add native Windows ARM64 CI and release assets

Delta currently tests and releases x86_64 Windows binaries, but not Windows ARM64.

I tested a fork branch that adds a native windows-11-arm / aarch64-pc-windows-msvc matrix entry to both CI and release workflows. The fork CI run, including the new native ARM64 test job, passed: https://github.com/meop/delta/actions/runs/33223435577

The existing release artifact naming and upload glob already work with the target triple. Would support for a Windows ARM64 release asset be welcome? I have a small PR ready if so.