Update mpi from master

cppal-commitbot · cppal-commitbot · commit d9ba4a905483 · 2024-10-29T14:50:14.000Z
diff --git a/libs/mpi b/libs/mpi
@@ -1 +1 @@
-Subproject commit 93546a4339037e8f23b679694c7551630c7f56eb
+Subproject commit a12d6c8378a7ea140910840c6885255fd4b34891
