If you press "More Info" a button should show up that says "Run Anyway" — does that work for you?
For background, Macs have been doing this for years and Windows is now also getting in on the grift where you have to pay them hundreds of dollars per year for a key that makes this not show up — it happens to any program you download, regardless of contents. 100% "isn't there someone you forgot to ask?" energy.
I'll jump through those hoops eventually but it's also a few days of development time to set things up to use their damn key in the correct way (sorry for the rant, it's just a very frustrating, expensive, and unnecessary technical chore that teaches people to ignore windows defender so I'm grumpy about it)