Update enzyme to version 3.9.0

package.json

@@ -70,7 +70,7 @@
     "check-prettier": "^1.0.1",
     "cross-env": "^5.2.0",
     "cross-port-killer": "^1.0.1",
-    "enzyme": "3.8.0",
+    "enzyme": "3.9.0",
     "eslint": "^5.13.0",
     "eslint-config-airbnb": "^17.1.0",
     "eslint-config-prettier": "^4.0.0",