chore(deps): Bump @angular/cli in /src/frontend in the angular group

Bumps the angular group in /src/frontend with 1 update: [@angular/cli](https://github.com/angular/angular-cli).


Updates `@angular/cli` from 21.2.27 to 21.2.28
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/v21.2.28/CHANGELOG.md)
- [Commits](angular/angular-cli@v21.2.27...v21.2.28)

---
updated-dependencies:
- dependency-name: "@angular/cli"
  dependency-version: 21.2.28
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: angular
...

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

Author: dependabot[bot]