fix(deps): update dependency @nuxt/content to v2.12.1

Author: renovate[bot]

package.json

@@ -12,7 +12,7 @@
     "generate": "nuxt generate"
   },
   "dependencies": {
-    "@nuxt/content": "2.4.3",
+    "@nuxt/content": "2.12.1",
     "nuxt": "2.16.2"
   },
   "devDependencies": {