chore(api-keys-simplified): release v0.4.0 (#23)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

Cargo.lock

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.4.0](https://github.com/gpmcp/api-keys-simplified/compare/v0.3.0...v0.4.0) - 2025-12-20
+
+### Fixed
+
+- expose salt used for hash ([#22](https://github.com/gpmcp/api-keys-simplified/pull/22))
+
 ## [0.3.0](https://github.com/gpmcp/api-keys-simplified/compare/v0.2.1...v0.3.0) - 2025-12-13
 
 ### Fixed

crates/api-keys-simplified/CHANGELOG.md

@@ -1,6 +1,6 @@
 [package]
 name = "api-keys-simplified"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 authors = ["Sandipsinh Rathod <sandip@ssdd.dev>"]
 readme = "README.md"