setup "engines" of package.json for node
use this on actions (.github/workflows/*.yml) before use node commands in actions: uses: Nanai10a/setup-engines@v1.
read .engines from <repo root>/package.json only, however this doesn't read package.json in other directory.
in future, read and validate: check package.json of all in repo, and solve version of node to matches all requirings.