build(deps-dev): bump @angular-devkit/schematics from 8.0.2 to 8.3.19

Bumps [@angular-devkit/schematics](https://github.com/angular/angular-cli) from 8.0.2 to 8.3.19.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Commits](angular/angular-cli@v8.0.2...v8.3.19)

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

package.json

@@ -44,7 +44,7 @@
     "@angular-devkit/build-angular": "^0.800.2",
     "@angular-devkit/build-ng-packagr": "^0.800.2",
     "@angular-devkit/core": "^8.3.13",
-    "@angular-devkit/schematics": "^8.0.2",
+    "@angular-devkit/schematics": "^8.3.19",
     "@angular/cli": "^8.0.2",
     "@angular/compiler-cli": "^8.0.0",
     "@angular/language-service": "^8.2.14",