Updates the Math submodule to 407dcfeb7b.

stan-buildbot · stan-buildbot · commit bd1d217c6d53 · 2025-10-07T16:18:37.000-04:00
diff --git a/lib/stan_math b/lib/stan_math
@@ -1 +1 @@
-Subproject commit 340e343d8cd076141736ac82b49587b6bcaff823
+Subproject commit 407dcfeb7bcdc5cbea1ff427e4945161fc47a276
