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] <[email protected]>

Author: dependabot[bot]

.github/workflows/tests.yaml

@@ -58,7 +58,7 @@ jobs:
         kustomizationPath: tests/manifests
 
     - name: Deploy test app
-      uses: Azure/k8s-deploy@v4
+      uses: Azure/k8s-deploy@v5
       with:
         manifests: ${{ steps.kustomize.outputs.manifestsBundle }}
         namespace: acceptance