Also:
* remove redundant luci-scheduler permission.
* make ./main.star executable on mac/linux.
R=rharrison
Bug: chromium:1216166
Change-Id: Iae6d915d5327218c4c1f80db273be347cf855765
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57424
Auto-Submit: Andrii Shyshkalov <tandrii@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>