Merge "Use std::filesystem when libc++ is new enough" into main am: 37d59481...

Merge "Use std::filesystem when libc++ is new enough" into main am: 37d59481 am: 608781cf am: 81bff771 am: 85adb929 am: 4e4de471

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



Change-Id: I18d4e39a5976ec50b3cbafbb6c6d4097c6412027
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>