Fixing the allowlist only helps a fresh install. npm will not re-run an
install script for a package already on disk, so every checkout that
installed while get-windows was blocked stays bricked: `hermes update`
pulls the fix, `npm install` skips the script, and the build fails on the
same missing binding.
Run `npm rebuild get-windows` from the staging step when the binding is
absent, and if that still yields nothing, print the two commands that
recover the checkout by hand instead of the previous advice to reinstall
dependencies, which is exactly what the user already tried. Gated to a
win32 host building for win32, since no other host can produce the binding.
Co-authored-by: JoaoMarcos44 <JoaoMarcos44@users.noreply.github.com>
