fix(deps): update dependency astro to v6.1.3

Author: renovate[bot]

package-lock.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@astrojs/sitemap": "3.7.2",
     "@tailwindcss/vite": "4.2.2",
-    "astro": "6.1.1",
+    "astro": "6.1.3",
     "tailwindcss": "4.2.2"
   },
   "devDependencies": {