chore(package): update eslint to version 6.0.1

Closes #31

Author: greenkeeper[bot]

package.json

@@ -31,7 +31,7 @@
     "@freaktechnik/eslint-config-test": "^6.5.1",
     "ajv": "^6.5.4",
     "ava": "^2.0.0",
-    "eslint": "^5.6.0"
+    "eslint": "^6.0.1"
   },
   "engines": {
     "node": ">= 7.0.0"