Update dependency next to v14 [SECURITY]

Author: renovate[bot]

package.json

@@ -29,7 +29,7 @@
     "@types/node": "20.11.6",
     "autoprefixer": "^10.4.16",
     "husky": "^8.0.3",
-    "next": "^13.5.6",
+    "next": "^14.0.0",
     "nextra": "3.0.0-alpha.13",
     "nextra-theme-docs": "3.0.0-alpha.13",
     "postcss": "^8.4.38",