docs: Add new v4.1.3 NEWS bullet

This was just added in open-mpi#10119.

Signed-off-by: Jeff Squyres <[email protected]>
(cherry picked from commit bfed131)

Author: jsquyres

docs/news/news-v4.1.x.rst

@@ -8,6 +8,9 @@ Open MPI version 4.1.3
 ----------------------
 :Date: March, 2022
 
+- Added support for ``ELEMENTAL`` to the MPI handle comparison
+  functions in the ``mpi_f08`` module.  Thanks to Salvatore Filippone
+  for raising the issue.
 - Minor datatype performance improvements in the CUDA-based code paths.
 - Fix ``MPI_ALLTOALLV`` when used with ``MPI_IN_PLACE``.
 - Fix ``MPI_BOTTOM`` handling for non-blocking collectives.  Thanks to