[cloud functions] Fix copy of approvals from tryjobs
[cloud functions] Fix copy of approvals from tryjobs

Adds logging of copied approvals, up to 10 per processed chunk.

Change-Id: Ic0e844c1dae97fb6d5ac4270633d1466047827bb
Reviewed-on: https://dart-review.googlesource.com/c/dart_ci/+/128121
Reviewed-by: Alexander Thomas <29642742b6693024c89de8232f2e2542cf7eedf7@google.com>

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