[contest] Fix release target
[contest] Fix release target

Bug: skia:12683
Change-Id: Ibf7e56e88e61ab6ec8ccca5e58f61183d1f0fb3e
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/477638
Reviewed-by: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@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