Bump @angular-devkit/build-angular from 20.1.1 to 20.3.4

Bumps [@angular-devkit/build-angular](https://github.com/angular/angular-cli) from 20.1.1 to 20.3.4.
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](angular/angular-cli@20.1.1...20.3.4)

---
updated-dependencies:
- dependency-name: "@angular-devkit/build-angular"
  dependency-version: 20.3.4
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]