chore(deps): bump jupyterhub/action-k8s-await-workloads from 2 to 3

Bumps [jupyterhub/action-k8s-await-workloads](https://github.com/jupyterhub/action-k8s-await-workloads) from 2 to 3.
- [Release notes](https://github.com/jupyterhub/action-k8s-await-workloads/releases)
- [Changelog](https://github.com/jupyterhub/action-k8s-await-workloads/blob/main/CHANGELOG.md)
- [Commits](jupyterhub/action-k8s-await-workloads@v2...v3)

---
updated-dependencies:
- dependency-name: jupyterhub/action-k8s-await-workloads
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -294,7 +294,7 @@ jobs:
 
       - name: "(Upgrade) Await ${{ matrix.upgrade-from }} chart"
         if: matrix.test-variation == 'upgrade'
-        uses: jupyterhub/action-k8s-await-workloads@v2
+        uses: jupyterhub/action-k8s-await-workloads@v3
         with:
           timeout: 150
           max-restarts: 1