Fix: ensure property derive is on all property methods for slash

CHANGELOG.md

@@ -7,6 +7,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [v6.0.4]
+
+### Changed
+
+- Remove some `todo()` in rogcc
+- Add missing `#[zbus(property)]` derive to Slash dbus properties
+
 ## [v6.0.3]
 
 ### NOTE