build(deps-dev): bump eslint from 3.19.0 to 4.19.1

Bumps [eslint](https://github.com/eslint/eslint) from 3.19.0 to 4.19.1.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v3.19.0...v4.19.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package.json

@@ -81,7 +81,7 @@
     "coffee-loader": "^0.7.2",
     "coffee-script": "^1.12.6",
     "css-loader": "^0.28.4",
-    "eslint": "^3.19.0",
+    "eslint": "^4.19.1",
     "eslint-plugin-vue-libs": "^1.2.0",
     "expose-loader": "^0.7.1",
     "extract-text-webpack-plugin": "^3.0.0",