Bump astro from 5.16.6 to 6.0.5

Bumps [astro](https://github.com/withastro/astro/tree/HEAD/packages/astro) from 5.16.6 to 6.0.5.
- [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@6.0.5/packages/astro)

---
updated-dependencies:
- dependency-name: astro
  dependency-version: 6.0.5
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/astro-integration/package.json

@@ -33,7 +33,7 @@
 		"typecheck": "tsc --noEmit"
 	},
 	"devDependencies": {
-		"astro": "5.16.6",
+		"astro": "6.0.5",
 		"publint": "0.3.16",
 		"tsdown": "0.18.3",
 		"typescript": "5.9.3"

playground/package.json

@@ -10,7 +10,7 @@
     "astro": "astro"
   },
   "dependencies": {
-    "astro": "5.16.6",
+    "astro": "6.0.5",
     "astro-integration": "workspace:*"
   },
   "devDependencies": {