chore(deps): bump azure/setup-helm from 4 to 5

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

---
updated-dependencies:
- dependency-name: azure/setup-helm
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/pr.yml

@@ -39,6 +39,6 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Set up Helm
-        uses: azure/setup-helm@v4
+        uses: azure/setup-helm@v5
       - name: Run Helm unit tests
         run: ./helm/run-tests.sh