Bump tar and @angular/cli in /src/frontend

Bumps [tar](https://github.com/isaacs/node-tar) to 7.5.7 and updates ancestor dependency [@angular/cli](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `tar` from 6.2.0 to 7.5.7
- [Release notes](https://github.com/isaacs/node-tar/releases)
- [Changelog](https://github.com/isaacs/node-tar/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-tar@v6.2.0...v7.5.7)

Updates `@angular/cli` from 17.0.8 to 21.1.2
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@17.0.8...v21.1.2)

---
updated-dependencies:
- dependency-name: tar
  dependency-version: 7.5.7
  dependency-type: indirect
- dependency-name: "@angular/cli"
  dependency-version: 21.1.2
  dependency-type: direct:development
...

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

Author: dependabot[bot]