Merge "Prevent using symlinks to starlark files" into main am: 12410186 am: 5ddf4a30

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



Change-Id: I2a51939771f153a16440bb78630b1ff16d279334
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>