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](
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| actions/mkdocs | ||
| ISSUE_TEMPLATE | ||
| workflows | ||
| dependabot.yml | ||
| PULL_REQUEST_TEMPLATE.md | ||