chore(deps): update devdependency @nuxtjs/eslint-config to v12

Author: renovate[bot]

package.json

@@ -26,7 +26,7 @@
     "html-minifier": "^4.0.0"
   },
   "devDependencies": {
-    "@nuxtjs/eslint-config": "^1.1.2",
+    "@nuxtjs/eslint-config": "^12.0.0",
     "babel-eslint": "^10.1.0",
     "codecov": "3.8.1",
     "eslint": "^6.8.0",