build(deps): bump rollup and @angular-devkit/build-angular in /frontend

Bumps [rollup](https://github.com/rollup/rollup) to 4.22.4 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `rollup` from 4.20.0 to 4.22.4
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](rollup/rollup@v4.20.0...v4.22.4)

Updates `@angular-devkit/build-angular` from 18.2.5 to 18.2.6
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@18.2.5...18.2.6)

---
updated-dependencies:
- dependency-name: rollup
  dependency-type: indirect
- dependency-name: "@angular-devkit/build-angular"
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>