Merge "Upgrade nix to 0.28.0" into main am: e5b6854fb8 am: 9d0d081cbb

Original change: https://android-review.googlesource.com/c/platform/system/security/+/3031902

Change-Id: I0c5a305be30cef5c2d04a40bf11ab1b66cccb11f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>