RESTRICT AUTOMERGE Roll Skia from 7ef621bf45c8 to d64928640a1b (1 revision)

https://skia.googlesource.com/skia.git/+log/7ef621bf45c8..d64928640a1b

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/android-u-release-autoroll
Please CC rmistry@google.com,scroggo@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Test: Presubmit checks will test this change.
Exempt-From-Owner-Approval: The autoroll bot does not require owner approval.
Bug: b/186777432
Change-Id: I69d2838b93c6616551542536b88c6ad386d4222a