feat(helmfile): oci support

[jycamier]

Changes

The helmfile manager need to use docker datasource when it deals with OCI repository like :

repositories:
  - name: jycamier
    url: ghcr.io/jycamier/renovate-helmfile-oci-reproduction-app
    oci: true

releases:
  - name: app-test
    chart: jycamier/oci-chart-test
    version: 0.1.0

Context

Close #13656

Documentation

• I have updated the documentation, or
• No documentation update is required

The oci: true is a helmfile native attribute.

How I've tested my work (please tick one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests but ran on a real repository, or
• Both unit tests + ran on a real repository

The real repository is https://github.com/jycamier/renovate-helmfile-oci-reproduction.
You can see the pull request here : https://github.com/jycamier/renovate-helmfile-oci-reproduction/pull/2

[CLAassistant]

All committers have signed the CLA.

[viceice]

needs tests

[viceice]

and git author/ committer fix (use force push to update)

[jycamier]

Thank you @viceice
I think it's good !

[jycamier]

And my tests are succeed now.

[renovate-release]

🎉 This PR is included in version 32.43.0 🎉

The release is available on:

• GitHub release
• 32.43.0

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