Update to Helm 3.18.3

[jvanz]

Description

There are a bunch of authentication issue fix in the latest Helm releases. It would be nice to have this updates in the Github runners to avoid issues in projects' CIs.

https://github.com/helm/helm/releases/tag/v3.18.2
https://github.com/helm/helm/releases/tag/v3.18.3

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 22.04
• Ubuntu 24.04
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022
• Windows Server 2025

Image version and build link

Image: ubuntu-24.04
Version: 20250602.3.0
Included Software: https://github.com/actions/runner-images/blob/ubuntu24/20250602.3/images/ubuntu/Ubuntu2404-Readme.md
Image Release: https://github.com/actions/runner-images/releases/tag/ubuntu24%2F20250602.3

https://github.com/kubewarden/helm-charts/actions/runs/15700233646/job/44233163879

Is it regression?

https://github.com/kubewarden/helm-charts/actions/runs/14619689966/job/41016200882

Expected behavior

Helm push command not fail due authentication issues

Actual behavior

Helm push command fails due authentication issues

Repro steps

1. Try to push OCI artifact using Helm

[jvanz]

It's not a bug.