deps(deps): bump the astro group with 2 updates

Bumps the astro group with 2 updates: [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) and [@astrojs/cloudflare](https://github.com/withastro/astro/tree/HEAD/packages/integrations/cloudflare).


Updates `astro` from 6.3.7 to 6.4.2
- [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@6.4.2/packages/astro)

Updates `@astrojs/cloudflare` from 13.5.4 to 13.6.0
- [Release notes](https://github.com/withastro/astro/releases)
- [Changelog](https://github.com/withastro/astro/blob/main/packages/integrations/cloudflare/CHANGELOG.md)
- [Commits](https://github.com/withastro/astro/commits/@astrojs/cloudflare@13.6.0/packages/integrations/cloudflare)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: astro
- dependency-name: "@astrojs/cloudflare"
  dependency-version: 13.6.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: astro
...

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

Author: dependabot[bot]

demo/package.json

@@ -15,9 +15,9 @@
     "@iconify-json/ri": "^1.2.10"
   },
   "devDependencies": {
-    "@astrojs/cloudflare": "^13.5.1",
+    "@astrojs/cloudflare": "^13.6.0",
     "@dallay/astro-icon": "workspace:*",
-    "astro": "^6.3.3",
+    "astro": "^6.4.2",
     "wrangler": "^4.92.0"
   }
 }

packages/core/package.json

@@ -67,7 +67,7 @@
   },
   "devDependencies": {
     "@types/node": "^25.8.0",
-    "astro": "^6.3.3",
+    "astro": "^6.4.2",
     "typescript": "^6.0.3",
     "vite": "^7.3.2"
   }

packages/www/package.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/check": "^0.9.9",
     "@astrojs/starlight": "^0.39.2",
-    "astro": "^6.3.3",
+    "astro": "^6.4.2",
     "sharp": "^0.34.5",
     "typescript": "^6.0.3"
   }