v0.3.0-1: Install coreutils instead of sha2
sha2 does not provide the `sha256sum` as I had previously though. The `coreutils` does on macOS. This should fix the build error when attempting to generate and upload the checksum on macOS.
sha2 does not provide the `sha256sum` as I had previously though. The `coreutils` does on macOS. This should fix the build error when attempting to generate and upload the checksum on macOS.