[autoroll] Fix missing CC field
[autoroll] Fix missing CC field

Bug: skia:9151
Change-Id: I20898f88886f60798ddfe105148643055fe2ec9a
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/219520
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot