chore(deps): update astro monorepo to v5

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "@astrojs/check": "^0.9.4",
     "@astrojs/cloudflare": "^12.6.4",
-    "@astrojs/react": "^4.3.0",
+    "@astrojs/react": "^5.0.0",
     "@luxass/eslint-config": "^5.3.0",
     "@tailwindcss/vite": "^4.1.12",
     "@types/node": "^24.3.0",