Fail the action if triggering workflow run has been cancelled

dist/index.js

@@ -1389,6 +1389,9 @@ function getCheckRunContext() {
         if (!event.workflow_run) {
             throw new Error("Event of type 'workflow_run' is missing 'workflow_run' field");
         }
+        if (event.workflow_run.conclusion === 'cancelled') {
+            throw new Error(`Workflow run ${event.workflow_run.id} has been cancelled`);
+        }
         return {
             sha: event.workflow_run.head_commit.id,
             runId: event.workflow_run.id