* fix: restore Zig and cargo-zigbuild caching in GitHub Actions setup action
Use mlugg/setup-zig and taiki-e/cache-cargo-install-action to speed up cross-compilation tool installation and avoid repeated downloads. All comments and code are in English.
* fix: use correct taiki-e/install-action for cargo-zigbuild
Use taiki-e/install-action@cargo-zigbuild instead of taiki-e/cache-cargo-install-action@v2 to match the original implementation from PR #77.
* refactor: remove explicit Zig version to use latest stable
