chore(package): update eslint to version 6.1.0

Closes #7

Author: greenkeeper[bot]

package.json

@@ -48,7 +48,7 @@
     "babel-preset-env": "^1.6.1",
     "babel-preset-react": "^6.24.1",
     "babel-runtime": "^6.18.0",
-    "eslint": "^4.10.0",
+    "eslint": "^6.1.0",
     "eslint-config-airbnb": "^16.1.0",
     "eslint-plugin-react": "^7.4.0",
     "eslint-plugin-jsx-a11y": "^6.0.2",