chore: ignore petstore basepath link (#2734)

## Proposed change

chore: ignore petstore basepath link

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* 🐛 Fix #2684
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.github/markdown-external-links.config.json

@@ -14,6 +14,9 @@
     },
     {
       "pattern": "^https://cloud.nx.app/*"
+    },
+    {
+      "pattern": "https://petstore3.swagger.io/api/v3"
     }
   ],
   "replacementPatterns": [