Bump Azure/k8s-deploy from 4 to 5

Bumps [Azure/k8s-deploy](https://github.com/azure/k8s-deploy) from 4 to 5.
- [Release notes](https://github.com/azure/k8s-deploy/releases)
- [Changelog](https://github.com/Azure/k8s-deploy/blob/main/CHANGELOG.md)
- [Commits](Azure/k8s-deploy@v4...v5)

---
updated-dependencies:
- dependency-name: Azure/k8s-deploy
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/build-deploy.yaml

@@ -73,7 +73,7 @@ jobs:
           kubeconfig: ${{ secrets.KUBECONFIG }}
 
       - name: Deploy to Kubernetes
-        uses: Azure/k8s-deploy@v4
+        uses: Azure/k8s-deploy@v5
         with:
           manifests: |
             infra/kubernetes/namespaces/default/site/deployment.yaml