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

Author: renovate[bot]

package.json

@@ -28,7 +28,7 @@
     "deepmerge": "^4.2.2"
   },
   "devDependencies": {
-    "@nuxtjs/eslint-config": "^6.0.1",
+    "@nuxtjs/eslint-config": "^12.0.0",
     "codecov": "^3.8.2",
     "eslint": "^7.28.0",
     "jest": "^26.6.3",