Add Helm Chart to project

[afritzler]

Description

Add a Helm chart to metal-operator to simplify deployment and configuration in Kubernetes environments. This will enable easy management of deployments and customizations.

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Requirements

• Create a Helm chart directory (e.g., /charts/metal-operator).
• Include templates for:
  • Deployment, Service, RBAC, and ConfigMap.
• Define values.yaml with customizable options:
  • Image, resources, node selector, tolerations, etc.
• Validate with helm lint.
• Test deployment in a Kubernetes environment.
• Add documentation under usage/installation describing the usage of this helm chart.

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Definition of Done

• Helm chart is functional and passes validation.
• Deployment is tested in Kubernetes.
• Documentation is complete.
• GH workflow which includes Helm chart linting.

[defo89]

I think we also need this for boot-operator