Thank you, @eddiechenms.
So an event exists. It just cant be used with GitHub Actions?
Triggering a workflow was exactly I was/am hoping for.
Someone please add it to a wishlist :)
Thank you for the explanation, @chrispat.
I can see how that could be problematic.
We'll find another way to do what we wanted to do (which is create a Jira ticket for new security alerts).