[libcxx-commits] [libcxx] [libc++] Switch FreeBSD CI job to Clang 17 (PR #86320)

[Mark de Wever via libcxx-commits]

mordante wrote:

As mention in the other PR we already use C++26. However there used in GitHub actions and not on Buildkite.

https://github.com/llvm/llvm-project/pull/86320