[task scheduler] Use LUCI project ID "skia" for buildbot.git
[task scheduler] Use LUCI project ID "skia" for buildbot.git

Bug: skia:
Change-Id: Icf8c42f2c06e7234fb8300cef907cfcfe7c45355
Reviewed-on: https://skia-review.googlesource.com/118060
Reviewed-by: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@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