au/paygen: cc chromeos-installer-alerts to AU test failure bugs.

This patch adds chromeos-installer-alerts list to au tests and paygen
and au suites. When a new bug is filed due to a test failure an
email will be sent to this list.

BUG=chromium:313076
TEST=None

Change-Id: I5d03e600e8b92e897686e63a584b191ef5d92a72
Reviewed-on: https://chromium-review.googlesource.com/211762
Commit-Queue: Alex Deymo <deymo@chromium.org>
Tested-by: Alex Deymo <deymo@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
6 files changed