Update changelog

Author: Shnatsel

cargo-auditable/CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.7.3] - 2026-03-03
+
+### Changed
+
+ - On Unix, use `-u` linker flag instead of `--undefined` for broader compatibility. Most notably fixes compatibility with the Zig toolchain linker, making `cargo zigbuild` work with `cargo auditable`.
+
 ## [0.7.2] - 2025-11-09
 
 ### Changed