fix(deps): update dependency astro to ^5.13.8

Author: renovate[bot]

package-lock.json

@@ -10,7 +10,7 @@
     "astro": "astro"
   },  "dependencies": {
     "@astrojs/starlight": "^0.35.3",
-    "astro": "^5.13.7",
+    "astro": "^5.13.8",
     "astro-auto-import": "^0.4.4",
     "remark-definition-list": "^2.0.0",
     "sharp": "^0.34.3",