Bump postcss from 8.4.24 to 8.5.16 in /example

Bumps [postcss](https://github.com/postcss/postcss) from 8.4.24 to 8.5.16.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.24...8.5.16)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.16
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

example/package-lock.json

@@ -23,7 +23,7 @@
     "@vitejs/plugin-react": "^2.0.0",
     "autoprefixer": "^10.4.8",
     "babel-preset-env": "^1.7.0",
-    "postcss": "^8.4.14",
+    "postcss": "^8.5.16",
     "tailwindcss": "^3.1.7",
     "typescript": "^4.7.4",
     "vite": "^3.2.7"