[Autoroller] Only update transitive deps if they are different
[Autoroller] Only update transitive deps if they are different

Bug: skia:9973
Change-Id: I231dd89b457c759861484d0fe698ce3cfe7108fe
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/276638
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@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