[libcxx-commits] [libcxx] [libc++] Update the status for lwg-3143 (PR #116971)

[A. Jiang via libcxx-commits]

https://github.com/frederick-vs-ja requested changes to this pull request.

I think the (NFC) changes in `monotonic_buffer_resource.h` and `memory_resource.cpp` should be split to another PR.

https://github.com/llvm/llvm-project/pull/116971