Add PR #1806 to 1.5.0-notes.rst

Author: rwgk

cuda_pathfinder/docs/source/release/1.5.0-notes.rst

@@ -31,6 +31,9 @@ Breaking Change
 Highlights
 ----------
 
+* Support cusparseLt release 0.9.0 (wheels have new directory structure).
+  (`PR #1806 <https://github.com/NVIDIA/cuda-python/pull/1806>`_)
+
 * Added :py:func:`cuda.pathfinder.get_cuda_path_or_home`, a centralized
   function for resolving ``CUDA_PATH``/``CUDA_HOME``. Features: