build: update @angular-devkit/build-angular to version ~0.900.0

Author: renovate-bot

package.json

@@ -33,7 +33,7 @@
     "zone.js": "~0.10.0"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.803.4",
+    "@angular-devkit/build-angular": "~0.900.0",
     "@angular/cli": "8.3.4",
     "@angular/compiler-cli": "9.0.0-next.6",
     "@angular/language-service": "9.0.0-next.6",