Syncing OCI helm chart with semver version range fails if tag has a v prefix

[reegnz]

What steps did you take:
[A clear and concise description steps that can be used to reproduce the problem.]

I tried syncing a helm OCI chart from here: https://github.com/metacontroller/metacontroller/pkgs/container/metacontroller-helm/153598243?tag=v4.11.7

The chart version is published with a v prefix (which is quite common).

I used the following vendir.yml

---
apiVersion: vendir.k14s.io/v1alpha1
kind: Config
directories:
- path: vendor
  contents:
  - path: metacontroller
    helmChart:
      name: metacontroller/metacontroller-helm
      version: ^4.0
      repository:
        url: oci://ghcr.io

What happened:

❯ vendir sync
Fetching: vendor + metacontroller (helm chart from oci://ghcr.io@metacontroller/metacontroller-helm:^4.0)

vendir: Error: Syncing directory 'vendor':
  Syncing directory 'metacontroller' with helm chart contents:
    Helm chart pull: exit status 1 (stderr: Error: Unable to locate any tags in provided repository: oci://ghcr.io/metacontroller/metacontroller-helm

If I change the version to 4.11.7 the sync also fails.
Only case when the sync works is if I explicitly declare the tag with a v prefix like v4.11.7 but then semver rules don't work eg. v4.0.

What did you expect:
I expected the vendir command to resolve the latest version to 4.11.7, sync that, and write that version into the lock file.

Anything else you would like to add:

Environment:

• vendir version (execute vendir --version): 0.39.0
• OS (e.g. from /etc/os-release): MacOS Sonoma 14.3

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[reegnz]

OTOH this might be a helm issue, so I'll also throw the topic into the project's github.

[reegnz]

Opened an issue with the chart maintainer: metacontroller/metacontroller#946