Bump @angular-devkit/build-angular from 0.803.14 to 0.803.15

Bumps [@angular-devkit/build-angular](https://github.com/angular/angular-cli) from 0.803.14 to 0.803.15.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Commits](https://github.com/angular/angular-cli/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -90,7 +90,7 @@
     "zone.js": "~0.9.1"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^0.803.14",
+    "@angular-devkit/build-angular": "^0.803.15",
     "@angular/cli": "~8.3.15",
     "@angular/compiler-cli": "^8.2.2",
     "@angular/language-service": "~8.2.12",