docs: Automated CherryPick Update for release-v4.4

[sealos-ci-robot]

🤖 Generated by Copilot at fac3990

Summary

⚙️⬆️📝

Update KubeadmConfig to support multiple kubeadm API versions and default to v1beta3. Improve code documentation in pkg/runtime/kubernetes/types/kubeadm_config.go.

Sing, O Muse, of the mighty pull request
That changed the KubeadmConfig struct and its methods
To handle different versions of kubeadm, the tool of gods
And convert them as needed with skill and wisdom.

Walkthrough

• Modify GetComponents method to use ToConvertedKubeadmConfig for conversion (link)
• Set default kubeadm API version to v1beta3 for empty Version field (link)
• Add comment to explain default case for unknown kubeadm versions (link)

Automated changes by create-pull-request GitHub action

[sweep-ai]

Apply Sweep Rules to your PR?

• Apply: Leftover TODOs in the code should be handled.
• Apply: All new business logic should have corresponding unit tests in the tests/ directory.
• Apply: Any clearly inefficient or repeated code should be optimized or refactored.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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