chore(deps-dev): bump astro from 6.1.9 to 6.2.1

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 6.1.9 to 6.2.1.
- [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@6.2.1/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.2.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -19,7 +19,7 @@
   },
   "devDependencies": {
     "@astrojs/check": "^0.9.8",
-    "astro": "^6.1.9",
+    "astro": "^6.2.1",
     "typescript": "^5.9.3",
     "zod": "^4.3.6"
   }