CHANGELOG entry

Author: devnexen

CHANGELOG.md

@@ -56,6 +56,9 @@ This project adheres to [Semantic Versioning](https://semver.org/).
   MacOS, FreeBSD, DragonflyBSD, Android, iOS and Haiku.
   ([#2074](https://github.com/nix-rust/nix/pull/2074))
 
+- Added `F_GETPATH_NOFIRMLINK` and `F_BARRIERFSYNC` FcntlFlags entry on Apple for `::nix::fcntl`.
+  ([#2155](https://github.com/nix-rust/nix/pull/2155))
+
 ## [0.27.1] - 2023-08-28
 
 ### Fixed