Fix stylelint violation in SelectPanel2

[Copilot]

Stylelint selector-max-type rule (max 1 type selector) was violated by nested ul → & li creating a compound selector with 2 type selectors.

Changelog

Changed

• SelectPanel.module.css: Replace & li with & .ActionListItem to comply with selector-max-type limit

Rollout strategy

• 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

No functional changes. ActionList.Item already applies .ActionListItem class to all list items.

Merge checklist

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

Original prompt

Fix the failing GitHub Actions workflow "CI / lint (pull_request)".
Analyze the workflow logs, identify the root cause of the failure, and implement a fix.
Job ID: 63365238384
Job URL: /primer/react/actions/runs/21940653902/job/63365238384?pr=7526

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Latest commit: a04af59

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