fix(deps): update dependency starlight-links-validator to ^0.20.0

Author: renovate[bot]

docs/package.json

@@ -14,6 +14,6 @@
     "@astrojs/starlight": "^0.32.1",
     "astro": "^5.1.5",
     "sharp": "^0.34.0",
-    "starlight-links-validator": "^0.17.0"
+    "starlight-links-validator": "^0.20.0"
   }
 }