Add dryrun flag to paygen proto

BUG=1065500
TEST=/generate

Change-Id: I239c015ff8314f8b68bb954f36e0d86737d78ec9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/2144451
Reviewed-by: Sean Abraham <seanabraham@chromium.org>
Reviewed-by: George Engelbrecht <engeg@google.com>
Commit-Queue: Navil Perez <navil@google.com>
Tested-by: Navil Perez <navil@google.com>
2 files changed