[Autoroll] Update Skia->Flutter checks to wait for
[Autoroll] Update Skia->Flutter checks to wait for

Bug: skia:8841
Change-Id: Ifbc3670495527bef69bdc1e88319a92aa75c0c30
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/203051
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@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