deprecate title prop on ActionList.Group component on docs

[broccolinisoup]

Since we deprecated title prop on ActionList.Group component in favour of ActionList.GroupHeading component, this PR updates the docs to reflect that deprecation.

Changelog

New

Nothing

Changed

• title prop on ActionList.Group component is deprecated.

Removed

Nothing

Rollout strategy

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

Testing & Reviewing

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)

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: e0e907bde187da51431e1861ef7c3e314de32273

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[github-actions[bot]]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	88.04 KB (0%)
packages/react/dist/browser.umd.js	88.38 KB (0%)