chore(package): update enzyme-adapter-react-16 to version 1.4.0

Closes #16

Author: greenkeeper[bot]

package.json

@@ -60,7 +60,7 @@
     "babel-preset-react": "^6.24.1",
     "coveralls": "^3.0.1",
     "enzyme": "^3.6.0",
-    "enzyme-adapter-react-16": "^1.2.0",
+    "enzyme-adapter-react-16": "^1.4.0",
     "greenkeeper-lockfile": "^1.15.1",
     "gzip-size": "^5.0.0",
     "jest": "^23.1.0",