Enable separate release process for Helm charts

[dadrus]

Preflight checklist

• [x] I agree to follow this project's Code of Conduct.
• [x] I have read and am following this repository's Contribution Guidelines."
• [ ] I have discussed this feature request with the community.

Describe the background of your feature request

Heimdall is maintained in a mono-repository, with each published release currently including:

• Documentation
• Heimdall binaries for different operating systems
• Containers published to GitHub Container Registry (GHCR) and Docker Hub
• Helm chart for heimdall

Obviously, this setup ties the Helm chart publication to heimdall’s main release and creates several limitations:

• Any change to the Helm chart requires a full release, even when no changes to code, or documentation have occurred.
• Improvements or fixes to the Helm chart cannot be published independently, resulting in delayed delivery of Helm chart updates.

Describe your idea

Adjust the CI/release workflows to support separate releases for the Helm chart.

Are there any workarounds or alternatives?

Let it as it is

Version

0.17.0

Additional Context

No response