feat(@angular/build): add quiet option to suppress build noise in unit tests #33028

✅ All contributors are covered under a CLA with Google

See https://cla.developers.google.com/ for more info about Google's Contributor License Agreement (CLA).

ℹ️ Googlers: Go here to view more details and manage scans for this pull request.

@clydin

The following contributors were found for this pull request:

✅ 35cbf03 Author: @clydin <19598772+clydin@users.noreply.github.com>

(Only the first commit for a unique contributor is listed.)