chore(package): update eslint to version 6.5.1

Closes #8

Author: greenkeeper[bot]

package.json

@@ -53,7 +53,7 @@
     "create-react-context": "^0.2.1",
     "enzyme": "^3.7.0",
     "enzyme-adapter-react-16": "^1.6.0",
-    "eslint": "^4.2.0",
+    "eslint": "^6.5.1",
     "eslint-config-airbnb": "16.1.0",
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-jsx-a11y": "6.0.3",