chore(deps-dev): bump postcss from 8.5.6 to 8.5.8 in /packages/ui (#100)

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.6 to 8.5.8.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.6...8.5.8)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

packages/ui/package.json

@@ -18,7 +18,7 @@
     "@types/react": "^19.0.7",
     "@types/node": "22.10.10",
     "autoprefixer": "10.4.27",
-    "postcss": "8.5.6",
+    "postcss": "8.5.8",
     "tailwindcss": "3.4.19",
     "typescript": "5.7.3"
   },