fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-NEXT-9508709

Author: snyk-bot

package.json

@@ -12,7 +12,7 @@
     "format": "prettier '**/*' --write --ignore-unknown"
   },
   "dependencies": {
-    "next": "latest",
+    "next": "14.2.25",
     "react": "17.0.2",
     "react-dom": "17.0.2"
   },