chore(package): update @angular-devkit/build-angular to version 0.802.1

Closes #19

Author: greenkeeper[bot]

demo/package.json

@@ -39,7 +39,7 @@
     "zone.js": "^0.8.26"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^0.13.9",
+    "@angular-devkit/build-angular": "^0.802.1",
     "@angular-devkit/schematics": "^7.3.9",
     "@angular/cli": "^7.3.9",
     "@angular/compiler-cli": "^7.2.15",