Update dependency zone.js to ^0.12.0

Author: renovate[bot]

package.json

@@ -25,7 +25,7 @@
     "core-js": "^2.4.1",
     "express": "^4.16.3",
     "rxjs": "^5.5.6",
-    "zone.js": "^0.8.19"
+    "zone.js": "^0.12.0"
   },
   "devDependencies": {
     "@angular/cli": "~1.7.4",