Update dependency cypress to v4.12.0

Author: renovate-bot

package-lock.json

@@ -38,7 +38,7 @@
     "node": ">=10"
   },
   "devDependencies": {
-    "cypress": "4.11.0",
+    "cypress": "4.12.0",
     "netlify-cli": "2.47.0",
     "react": "16.13.1",
     "react-dom": "16.13.1",