Bump undici and @angular-devkit/build-angular

Bumps [undici](https://github.com/nodejs/undici) to 6.21.1 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `undici` from 6.21.0 to 6.21.1
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](nodejs/undici@v6.21.0...v6.21.1)

Updates `@angular-devkit/build-angular` from 17.3.11 to 19.1.3
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@17.3.11...19.1.3)

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

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