[cloud functions] Also check the right field
[cloud functions] Also check the right field

This is a follow-up to:
https://dart-review.googlesource.com/c/dart_ci/+/134301

https://github.com/dart-lang/dart_ci/issues/73

Change-Id: Ib36b81050c20547d7de5ebbecba987c3adf55337
Reviewed-on: https://dart-review.googlesource.com/c/dart_ci/+/134302
Reviewed-by: William Hesse <a821cddceae7dc400f272e3cb1a72f400f9fed6d@google.com>

dart-lang/dart_ci,dart-lang/dart_ci,dart-lang/dart_ci,dart-lang/dart_ci