I guess it was only a matter of time...

Part of this is fair since there is a cost to operating the control plane.

One way around this is to go back to using check runs. I imagine a third party could handle webhooks, parse the .github/workflows/example.yml, then execute the action via https://github.com/nektos/act (or similar), then post the result.

inb4 "our webhooks are now 2c per call"