Release with statically linked binaries

[david50407]

Apple Silicon Macs can run x86_64 prebuilt binaries via Rosetta, but dependencies in x86_64 variant may not provided on the machine. (see log below)

It is better to release prebuilt binary statically linked and users can re-build in arm64 manually later they installed crystal binaries.

> ./crystal-build_refs.tags.v0.1.6_macOS-amd64
dyld[78079]: Library not loaded: /usr/local/opt/[email protected]/lib/libssl.1.1.dylib
  Referenced from: <3385D316-84E8-3534-B308-F139397EE54B> /Users/davy/Downloads/crystal-build_refs.tags.v0.1.6_macOS-amd64
  Reason: tried: '/usr/local/opt/[email protected]/lib/libssl.1.1.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/opt/[email protected]/lib/libssl.1.1.dylib' (no such file), '/usr/local/opt/[email protected]/lib/libssl.1.1.dylib' (no such file), '/usr/local/lib/libssl.1.1.dylib' (mach-o file, but is an incompatible architecture (have 'arm64', need 'x86_64')), '/usr/lib/libssl.1.1.dylib' (no such file, not in dyld cache)
fish: Job 1, '/Users/davy/Downloads/crystal-b…' terminated by signal SIGABRT (Abort)