iox-#2274 Update release notes

Author: elBoberido

doc/website/release-notes/iceoryx-unreleased.md

@@ -217,6 +217,7 @@
 - Split `iceoryx_hoofs` into logical modules [#1391](https://github.com/eclipse-iceoryx/iceoryx/issues/1391)
 - Create a flat include structure for `iceoryx_hoofs` [#1593](https://github.com/eclipse-iceoryx/iceoryx/issues/1593)
 - Handle 'strerror_r' idiosyncrasies in the platform layer [#1616](https://github.com/eclipse-iceoryx/iceoryx/issues/1616)
+- Fix new clang-tidy-18 warnings [#2274](https://github.com/eclipse-iceoryx/iceoryx/issues/2274)
 
 **Workflow:**