update kubeconform CI kubernetes targeted versions

[endersonmaia]

📚 Context

The CI for helm-charts has a kubeconform targeting 3 kubernetes versions, and they're a little "outdated".

We should support the latest 3 kubernetes versions, thatś 1.29, 1.28 and 1.27.

✔️ Solution

Update the CI to run kubeconform for the latest 3 kubernetes versions.

📈 Subtasks

• update kubeconfirm CI
• adjust coe to kueconform errors, if any

🎯 Definition of Done

• CI updated
• CI green ✔️