Bump astro from 6.1.10 to 6.4.4 in the astro group across 1 directory

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


Updates `astro` from 6.1.10 to 6.4.4
- [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@6.4.4/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.4.4
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: astro
...

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

Author: dependabot[bot]

package.json

@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@astrojs/starlight": "^0.39.3",
-    "astro": "^6.1.10",
+    "astro": "^6.4.4",
     "js-yaml": "^4.2.0",
     "sharp": "^0.34.5",
     "yaml": "^2.9.0"