Update GitHub Actions workflows. (#1565)

This PR was automatically generated by the
update-native-provider-workflows workflow in the pulumi/ci-mgmt repo,
from commit 236437ea328a6f3dc4fbfa4924fc968fc619842a.

.github/workflows/run-acceptance-tests.yml

@@ -382,8 +382,14 @@ jobs:
     runs-on: ubuntu-latest
     name: sentinel
     steps:
-    - name: Is workflow a success
-      run: echo yes
+    - name: Mark workflow as successful
+      uses: guibranco/github-status-action-v2@0849440ec82c5fa69b2377725b9b7852a3977e76
+      with:
+        authToken: ${{ secrets.GITHUB_TOKEN }}
+        context: Sentinel
+        state: success
+        description: Sentinel checks passed
+        sha: ${{ github.event.pull_request.head.sha || github.sha }}
     if: github.event_name == 'repository_dispatch' ||
       github.event.pull_request.head.repo.full_name == github.repository
     needs: