Merge "Prefer `.first()` to `.get(0)`" into main am: b4e19af8c7

Original change: https://android-review.googlesource.com/c/platform/system/security/+/2956141

Change-Id: I52d1d4cef2f2b5db1badd22b479107ab29dcbff7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>