chore(deps): update dependency eslint to v6.2.1 (#443)

Author: renovate[bot]

package.json

@@ -56,7 +56,7 @@
   "devDependencies": {
     "chai": "4.2.0",
     "coveralls": "3.0.5",
-    "eslint": "6.2.0",
+    "eslint": "6.2.1",
     "eslint-config-standard": "12.0.0",
     "eslint-plugin-import": "2.18.2",
     "eslint-plugin-node": "9.1.0",