chore(deps): update dependency nuxt to v3 [security]

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
     "@nuxtjs/sitemap": "2.4.0",
     "ackee-tracker": "latest",
     "fiber": "1.0.4",
-    "nuxt": "2.15.8",
+    "nuxt": "3.12.4",
     "remark": "13.0.0",
     "remark-html": "13.0.2",
     "sass": "1.50.0",