chore: bump azure/setup-helm from 3.5 to 4 (#6780)

Bumps [azure/setup-helm](https://github.com/azure/setup-helm) from 3.5 to 4.
- [Release notes](https://github.com/azure/setup-helm/releases)
- [Changelog](https://github.com/Azure/setup-helm/blob/main/CHANGELOG.md)
- [Commits](https://github.com/azure/setup-helm/compare/v3.5...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build.yaml

@@ -83,7 +83,7 @@ jobs:
 
       - name: Install helm
         if: steps.changed-files.outputs.any_changed == 'true'
-        uses: azure/setup-helm@v3.5
+        uses: azure/setup-helm@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}