chore(deps): bump astro (#3002)

Bumps the npm_and_yarn group with 1 update in the /docs directory: [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro).


Updates `astro` from 4.15.12 to 4.16.4
- [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@4.16.4/packages/astro)

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

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docs/package.json

@@ -15,7 +15,7 @@
         "@astrojs/starlight": "^0.28.3",
         "@astrojs/starlight-tailwind": "^2.0.3",
         "@astrojs/tailwind": "^5.1.2",
-        "astro": "^4.16.3",
+        "astro": "^4.16.4",
         "prettier": "^3.3.3",
         "prettier-plugin-astro": "^0.14.1",
         "prettier-plugin-tailwindcss": "^0.6.8",