fix: site2/website-next/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-TAR-15127355

Author: snyk-bot

site2/website-next/package.json

@@ -30,7 +30,7 @@
     "clsx": "^1.1.1",
     "file-loader": "^6.2.0",
     "install": "^0.13.0",
-    "npm": "^8.1.3",
+    "npm": "^11.6.1",
     "prism-react-renderer": "^1.2.1",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",