Update dependency eslint to v6.0.1 (#27)

Author: renovate[bot]

package-lock.json

@@ -16,7 +16,7 @@
         "@types/node": "12.0.10",
         "@typescript-eslint/eslint-plugin": "1.11.0",
         "@typescript-eslint/parser": "1.11.0",
-        "eslint": "6.0.0",
+        "eslint": "6.0.1",
         "eslint-config-airbnb": "17.1.0",
         "eslint-config-airbnb-base": "13.1.0",
         "eslint-config-prettier": "5.1.0",