ci: bump lewagon/wait-on-check-action from 1.9.0 to 1.9.1

Bumps [lewagon/wait-on-check-action](https://github.com/lewagon/wait-on-check-action) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/lewagon/wait-on-check-action/releases)
- [Changelog](https://github.com/lewagon/wait-on-check-action/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lewagon/wait-on-check-action/compare/v1.9.0...v1.9.1)

---
updated-dependencies:
- dependency-name: lewagon/wait-on-check-action
  dependency-version: 1.9.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/multi-arch-test-build.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Wait for Check Run
-        uses: lewagon/wait-on-check-action@v1.9.0
+        uses: lewagon/wait-on-check-action@v1.9.1
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           check-name: 'FormalityCheck / Git & Commits'