I would love to do something about that, but the only way to make it go away is for me to buy a code-signing certificate and to get one of those I would need to both create a business like an LLC that actually owns the signing key and also pay $600 per year.
Notably that is not a ‘window defender thinks this is a virus’ warning, but just a ‘we do not recognize this program’. And the way to get recognized is to pay up 