build: fix GYP settings to avoid rebuilding already built files

This is my naive attempt at reducing the time it takes to GitHub Actions to run the test suite. My understanding is that a change in https://github.com/nodejs/node/pull/36139 broke ability for the build chain to know which build artefacts are up to date. It attempts to rebuild everything, which may go unnoticed when ccache is setup, but we don't have it setup on GH Actions.

//cc @nodejs/v8