Merge "Prevent using symlinks to starlark files" into main am: 12410186

Original change: https://android-review.googlesource.com/c/platform/build/+/2824818



Change-Id: Ie8b9274d39ceba0892e90b788afa00b8ab3066e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>