fix: example/package.json & example/package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-QS-14724253

Author: snyk-bot

example/package-lock.json

@@ -11,7 +11,7 @@
     "dependencies": {
         "@pankod/refine-antd": "3.3.2",
         "@pankod/refine-core": "3.3.1",
-        "@pankod/refine-nextjs-router": "3.3.1",
+        "@pankod/refine-nextjs-router": "4.5.0",
         "@tspvivek/refine-directus": "^1.0.7",
         "next": "^12.0.3",
         "next-compose-plugins": "^2.2.1",