To pick up `-use-id-token` and `-audience` flags.

BUG=1204034
R=iannucci@chromium.org, tandrii@chromium.org
CC=sdefresne@chromium.org

Change-Id: I1a70115d9833d10224516edd6042fb9c022fd38b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2904101Reviewed-by: Andrii Shyshkalov <tandrii@google.com>
Commit-Queue: Vadim Shtayura <vadimsh@chromium.org>