Bump @angular/cli from 16.2.5 to 16.2.8 in /frontend (#199)

Bumps [@angular/cli](https://github.com/angular/angular-cli) from 16.2.5 to 16.2.8.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular-cli/compare/16.2.5...16.2.8)

---
updated-dependencies:
- dependency-name: "@angular/cli"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

frontend/package.json

@@ -29,7 +29,7 @@
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "^16.2.5",
-    "@angular/cli": "~16.2.5",
+    "@angular/cli": "~16.2.8",
     "@angular/compiler-cli": "^16.2.8",
     "@types/jasmine": "~4.3.6",
     "jasmine-core": "~4.6.0",