Update changelog

Author: christophfroehlich

control_toolbox/CHANGELOG.rst

@@ -2,6 +2,12 @@
 Changelog for package control_toolbox
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
+Forthcoming
+-----------
+* Minor filter fixes + clang-format rules update (`#347 <https://github.com/ros-controls/control_toolbox/issues/347>`_)
+* Cleanup removed msg fields (`#346 <https://github.com/ros-controls/control_toolbox/issues/346>`_)
+* Contributors: Christoph Fröhlich, Sai Kishor Kothakota
+
 5.3.0 (2025-04-24)
 ------------------
 * Add std::vector<double> option to the low pass filter (`#340 <https://github.com/ros-controls/control_toolbox/issues/340>`_)