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

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

Change-Id: I7210952ef436a0dea79ed42ff0e64bda86961af8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>