chore(package): update enzyme to version 2.9.1

Author: greenkeeper[bot]

package.json

@@ -57,7 +57,7 @@
     "chai-enzyme": "0.7.1",
     "coveralls": "2.13.1",
     "css-loader": "0.28.4",
-    "enzyme": "2.9.0",
+    "enzyme": "2.9.1",
     "eslint": "4.0.0",
     "eslint-plugin-react": "7.1.0",
     "faker": "^4.1.0",