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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-NEXT-8186172

Author: snyk-bot

package-lock.json

@@ -28,7 +28,7 @@
     "classnames": "2.5.1",
     "get-youtube-id": "1.0.1",
     "intl-segmenter-polyfill": "0.4.4",
-    "next": "14.1.2",
+    "next": "14.2.7",
     "next-google-fonts": "2.2.0",
     "next-sanity": "8.1.3",
     "react": "18.2.0",