Try to get the runner to actually run

.github/workflows/gpu-ci.yml

@@ -1,5 +1,5 @@
 name: "gpu-ci"
-on: [workflow_dispatch]
+on: [workflow_dispatch, push, pull_request]
 concurrency:
   group: build-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true