:seedling: Bump helm.sh/helm/v3 from 3.20.2 to 3.21.0 (#2718)

Bumps [helm.sh/helm/v3](https://github.com/helm/helm) from 3.20.2 to 3.21.0.
- [Release notes](https://github.com/helm/helm/releases)
- [Commits](https://github.com/helm/helm/compare/v3.20.2...v3.21.0)

---
updated-dependencies:
- dependency-name: helm.sh/helm/v3
  dependency-version: 3.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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