build(deps): bump azure/setup-helm from 2.0 to 2.1

Bumps [azure/setup-helm](https://github.com/azure/setup-helm) from 2.0 to 2.1.
- [Release notes](https://github.com/azure/setup-helm/releases)
- [Commits](https://github.com/azure/setup-helm/compare/v2.0...v2.1

)

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

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