Merge "Use std::filesystem when libc++ is new enough" into main am: 37d5948144

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2758145

Change-Id: I6ee358c40c615d29aa7dc6e7bcecbdebc7394327
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>