chore(package): update eslint to version 6.1.0 (#529)

Author: greenkeeper[bot]

package.json

@@ -152,7 +152,7 @@
     "enzyme": "3.9.0",
     "enzyme-adapter-react-16": "1.9.1",
     "enzyme-to-json": "^3.3.4",
-    "eslint": "5.14.0",
+    "eslint": "6.1.0",
     "eslint-plugin-prettier": "^3.1.0",
     "husky": "^2.1.0",
     "jest": "23.4.2",