chore(package): update cypress to version 4.0.2

Closes #4

Author: greenkeeper[bot]

package.json

@@ -21,7 +21,7 @@
     "@babel/preset-react": "^7.0.0",
     "babel-loader": "^8.0.6",
     "coveralls": "^3.0.5",
-    "cypress": "^3.4.0",
+    "cypress": "^4.0.2",
     "enzyme": "^3.10.0",
     "enzyme-adapter-react-16": "^1.14.0",
     "jest": "^24.8.0",