chore(package): update @vue/eslint-config-airbnb to version 5.0.2

Closes #19

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "@vue/cli-plugin-babel": "^3.8.0",
     "@vue/cli-plugin-eslint": "^3.8.0",
     "@vue/cli-service": "^3.8.0",
-    "@vue/eslint-config-airbnb": "^4.0.0",
+    "@vue/eslint-config-airbnb": "^5.0.2",
     "commitizen": "^3.1.1",
     "copy-webpack-plugin": "^5",
     "cz-conventional-changelog": "^2.1.0",