feat: add ARM64 (aarch64) release binaries for scrubcsv and hashcsv #13
Description
Context
Faraday's Docker images are being migrated to multi-arch (amd64 + arm64) to support Apple Silicon developer machines natively.
csv-tools currently only publishes x86_64-unknown-linux-musl binaries for scrubcsv and hashcsv. We need aarch64-unknown-linux-musl release binaries so the following Dockerfiles can download the correct binary based on TARGETARCH:
libs/images/model-train-base/Dockerfile(scrubcsv)libs/images/fdy_geocodeplacespec/Dockerfile(scrubcsv, hashcsv)
Related
Part of the multi-arch Docker images effort in faradayio/fdy. See docs/plans/2026-02-23-multi-arch-docker-images-design.md in that repo.