chore(package): update @angular-devkit/build-angular to version 0.803.9

Closes #81

Author: greenkeeper[bot]

demo/package.json

@@ -52,7 +52,7 @@
   },
   "devDependencies": {
     "@angular-builders/jest": "^7.2.0",
-    "@angular-devkit/build-angular": "^0.10.7",
+    "@angular-devkit/build-angular": "^0.803.9",
     "@angular-devkit/schematics": "^7.2.1",
     "@angular/cli": "^7.2.1",
     "@angular/compiler-cli": "^7.2.0",