fix: hover background in ActionList.Item

[renbaoshuo]

When using styled-components 6.x, the background when hovering is not correct.

Changelog

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• [x] Patch release
• [ ] Minor release
• [ ] Major release; if selected, include a written rollout or migration plan
• [ ] None; if selected, include a brief description as to why

Testing & Reviewing

Merge checklist

• [ ] Added/updated tests
• [ ] Added/updated documentation
• [ ] Added/updated previews (Storybook)
• [x] Changes are SSR compatible
• [x] Tested in Chrome
• [x] Tested in Firefox
• [x] Tested in Safari
• [x] Tested in Edge
• [ ] (GitHub staff only) Integration tests pass at github/github (Learn more about how to run integration tests)