[skolo] Add sky@google.com to skolo authorized keys.
[skolo] Add sky@google.com to skolo authorized keys.

Bug: skia:13089
Change-Id: I6bf4681aa5b5713f54ab96471c2654a73f374b89
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/541341
Reviewed-by: 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