[skottie] Properly apply canUploadZips config
[skottie] Properly apply canUploadZips config

Add some logging to help debug issues like this in the future.

Change-Id: I523cf42373105afc9cb8a11b47a8f49a8500f63d
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/382718
Reviewed-by: Kevin Lubick <7cdab2cfab351f23814786ba39716e90eed69047@google.com>
Reviewed-by: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@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