chore: bump version to 0.3.1

ci: remove x86_64 macOS build — lance-linalg AVX-512 cross-compile un…

…supported

lance-linalg references AVX-512 symbols that can't be linked when
cross-compiling from ARM to x86_64. Intel Mac users can run the
ARM build via Rosetta 2.

Also removed unused universal binary job.

chore: bump version to 0.2.0

ci: add contents write permission for release upload