Update dependency cypress to v3.8.1

Author: renovate-bot

package-lock.json

@@ -33,7 +33,7 @@
     "babel-loader": "8.0.6",
     "babel-plugin-istanbul": "5.2.0",
     "cross-env": "5.2.1",
-    "cypress": "3.8.0",
+    "cypress": "3.8.1",
     "html-webpack-plugin": "3.2.0",
     "istanbul-lib-coverage": "2.0.5",
     "nyc": "14.1.1",