Handle Supabase CLI v2.99 archives

[jgoux]

Summary

Supabase CLI v2.99.0 changed the release archive layout. The latest release no longer exposes assets like supabase_linux_amd64.tar.gz; the downloadable tarballs are now versioned, for example supabase_2.99.0_linux_amd64.tar.gz. Windows archives also switched to .zip for v2.99.0+.

This updates the setup action to:

• Resolve latest to the actual Supabase CLI release tag before building the download URL.
• Keep the existing unversioned archive path for CLI versions before v2.99.0.
• Use the new versioned archive path for v2.99.0 and later.
• Extract Windows v2.99.0+ archives with extractZip; keep tar extraction for Linux and macOS.
• Continue executing the main supabase binary even though the archive now also contains supabase-go.

This should fix the latest download failure reported in supabase/cli#5257.

Testing

• bun test
• bun run ci
• Local smoke test with INPUT_VERSION=latest bun src/main.ts, which downloaded and executed supabase_2.99.0_darwin_arm64.tar.gz successfully.