build(deps): bump slackapi/slack-github-action from 2.1.0 to 2.1.1 (#47748)

Bumps [slackapi/slack-github-action](https://github.com/slackapi/slack-github-action) from 2.1.0 to 2.1.1.
- [Release notes](https://github.com/slackapi/slack-github-action/releases)
- [Commits](b0fa283ad8...91efab103c)

---
updated-dependencies:
- dependency-name: slackapi/slack-github-action
  dependency-version: 2.1.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/audit-branch-ci.yml

@@ -141,7 +141,7 @@ jobs:
             await core.summary.write();
       - name: Send Slack message if errors
         if: ${{ always() && steps.audit-errors.outputs.errorsFound && github.ref == 'refs/heads/main' }}
-        uses: slackapi/slack-github-action@b0fa283ad8fea605de13dc3f449259339835fc52 # v2.1.0
+        uses: slackapi/slack-github-action@91efab103c0de0a537f72a35f6b8cda0ee76bf0a # v2.1.1
         with:
           payload: |
             link: "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"

.github/workflows/pull-request-labeled.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Trigger Slack workflow
-        uses: slackapi/slack-github-action@b0fa283ad8fea605de13dc3f449259339835fc52 # v2.1.0
+        uses: slackapi/slack-github-action@91efab103c0de0a537f72a35f6b8cda0ee76bf0a # v2.1.1
         with:
           webhook: ${{ secrets.BACKPORT_REQUESTED_SLACK_WEBHOOK_URL }} 
           webhook-type: webhook-trigger