SPIRV-Tools roller did not roll the correct headers version.

Change-Id: Ifa1c9e2ee92e11a5e84ba78249e422884f5b6582
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1663840Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>