chore: add undici devDependency for custom keepAlive Agent

Required by the custom fetch wrapper that replaces the default
4s keepAlive undici global dispatcher with a custom Agent (60s).

Author: Lellansin

package-lock.json

@@ -65,6 +65,7 @@
     "prettier": "^3.8.3",
     "tsx": "^4.21.0",
     "typescript": "^6.0.3",
-    "typescript-eslint": "^8.59.2"
+    "typescript-eslint": "^8.59.2",
+    "undici": "^8.3.0"
   }
 }