chore(package): update eslint to version 6.0.1

Closes #10

Author: greenkeeper[bot]

package.json

@@ -33,7 +33,7 @@
     "@babel/register": "^7.0.0",
     "babel-preset-minify": "^0.5.0",
     "chai": "^4.2.0",
-    "eslint": "^5.7.0",
+    "eslint": "^6.0.1",
     "eslint-config-standard": "^12.0.0",
     "eslint-plugin-babel": "^5.2.1",
     "eslint-plugin-import": "^2.14.0",