Update end-to-end-tests.yaml

.github/workflows/end-to-end-tests.yaml

@@ -18,7 +18,7 @@ jobs:
         name: Playwright
         # We only want to run the playwright tests on merge queue to prevent regressions
         # from creeping in. They take a long time to run and consume multiple concurrent runners.
-        if: github.event.workflow_run.event == 'merge_group'
+        if: github.event_name == 'merge_group'
         uses: matrix-org/matrix-react-sdk/.github/workflows/end-to-end-tests.yaml@develop
         permissions:
             actions: read