[autoroll] Add CAS client -> luci-py roller
[autoroll] Add CAS client -> luci-py roller

Bug: skia:12236
Change-Id: I1325cd982ff38062a01303e364be05ec5e1dd34d
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/430878
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