Bump astro from 4.11.3 to 4.16.1 in /website

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 4.11.3 to 4.16.1.
- [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@4.16.1/packages/astro)

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

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

website/package.json

@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@astrojs/starlight": "^0.24.4",
-    "astro": "^4.10.2",
+    "astro": "^4.16.1",
     "sharp": "^0.32.5"
   }
 }