ci: bump ubuntu to 24.04

[zhangzujian]

Pull Request

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What type of this PR

Examples of user facing changes:

• Features
• Bug fixes
• Docs
• Tests

Which issue(s) this PR fixes

Fixes IPv6/DualStack installation failure in github actions.

ip6tables unknown option --set-xmark

[gemini-code-assist]

Hello @zhangzujian, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

Summary of Changes

This pull request updates the base Ubuntu version used in the CI environment to 24.04. The primary motivation is to address an issue where IPv6/DualStack installations were failing in GitHub Actions due to an ip6tables error related to an unknown option --set-xmark. This update should resolve the compatibility issue and ensure smoother CI runs for IPv6 configurations.

Highlights

• CI Environment Update: The base Ubuntu version in the CI environment has been bumped from an older version to 24.04.
• IPv6/DualStack Fix: This change aims to resolve IPv6/DualStack installation failures encountered in GitHub Actions.
• Dependency Compatibility: The update addresses a compatibility issue with ip6tables related to the --set-xmark option.

Changelog

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[gemini-code-assist]

Code Review

The pull request updates the Ubuntu version used in the CI environment to 24.04. This should address the IPv6/DualStack installation failure in GitHub Actions related to the ip6tables issue. The change appears straightforward and necessary.

Merge Readiness

The pull request seems ready to be merged, as it addresses a known issue and the change is simple. I am unable to directly approve the pull request, and other reviewers should review and approve this code before merging.