add gh-351 to changelog

Author: ndgrigorian

CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 ### Fixed
+## [2.3.1] - 2026-07-31
+
+### Fixed
+* Fixed RPATH logic for OSX builds [gh-351](https://github.com/IntelPython/mkl_fft/pull/351)
 
 ## [2.3.0] - 2026-07-30