Why does GitHub Actions need to be involved? It’s the Pulumi state. You should be able to retrieve information from Pulumi’s state directly. e.g. If you’re using app.pulumi.com you should see previews in the console.
No matter how you like to participate in developer communities, Pulumi wants to meet you there. If you want to meet other Pulumi users to share use-cases and best practices, contribute code or documentation, see us at an event, or just tell a story about something cool you did with Pulumi, you are part of our community.