Update dependency @cypress/code-coverage to v1.12.1

Author: renovate-bot

package-lock.json

@@ -18,7 +18,7 @@
   "license": "MIT",
   "devDependencies": {
     "@babel/core": "7.8.4",
-    "@cypress/code-coverage": "1.11.1",
+    "@cypress/code-coverage": "1.12.1",
     "babel-loader": "8.0.6",
     "babel-plugin-istanbul": "5.2.0",
     "babel-preset-env": "1.7.0",