Bump postcss from 8.5.8 to 8.5.10

Bumps [postcss](https://github.com/postcss/postcss) from 8.5.8 to 8.5.10.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.5.8...8.5.10)

---
updated-dependencies:
- dependency-name: postcss
  dependency-version: 8.5.10
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -21,7 +21,7 @@
     "@mdx-js/react": "^3.1.1",
     "autoprefixer": "^10.4.14",
     "clsx": "^2.1.1",
-    "postcss": "^8.4.27",
+    "postcss": "^8.5.10",
     "prism-react-renderer": "^2.4.1",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",