[Feature] Support OCI artifacts for Helm chart

[patsevanton]

Issue submitter TODO list

• I've looked up my issue in FAQ
• I've searched for an already existing issues here (legacy) and here
• I've tried installing latest charts and the issue still persists there
• I'm running a supported version of the application & chart which is listed here

Describe the bug (actual behavior)

I have helm chart and subcharts. When i try add kafka-ui to subchart:

apiVersion: v2
name: sentry
description: A Helm chart for Kubernetes
type: application
version: 25.10.0
appVersion: 24.7.1
dependencies:
  - name: kafka-ui
    repository: https://provectus.github.io/kafka-ui-charts
    version: 0.7.6
    condition: kafka-ui.enabled

i get error:

Error: no repository definition for https://provectus.github.io/kafka-ui-charts. Please add the missing repos via 'helm repo add'

Please consider using the OCI repository to publish helm charts.

Advantages of using OCI repositories for helm charts:

• With OCI based Helm Charts, you get the familiar command syntax as with interacting with container images runtimes. registry login
• Fewer commands needed for installing Charts. No repo add and repo update commands anymore.
• Publishing Helm Charts to OCI registries does not need the separate plugin cm-push plugin anymore.
• The performance for repositories with many Helm Charts is better.

Expected behavior

No repo add and repo update commands anymore.

Your installation details

Steps to reproduce

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Additional context

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