Bump astro from 6.1.4 to 6.1.6 in /docs

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 6.1.4 to 6.1.6.
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/astro/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/astro@6.1.6/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.1.6
  dependency-type: direct:production
...

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

Author: dependabot[bot]

docs/package.json

@@ -17,7 +17,7 @@
     "@phosphor-icons/react": "^2.1.10",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
-    "astro": "^6.1.4",
+    "astro": "^6.1.6",
     "react": "^19.2.4",
     "react-dom": "^19.2.4",
     "remark-gemoji": "^8.0.0",