chore(deps): update dependency eslint to v6.7.2 (#444)

Author: renovate[bot]

package.json

@@ -57,7 +57,7 @@
   "devDependencies": {
     "chai": "4.2.0",
     "coveralls": "3.0.9",
-    "eslint": "6.2.2",
+    "eslint": "6.7.2",
     "eslint-config-standard": "14.1.0",
     "eslint-plugin-import": "2.18.2",
     "eslint-plugin-node": "10.0.0",