Updates the Math submodule to 5b7cef4.

stan-buildbot · stan-buildbot · commit d13c50c0fe7e · 2026-01-13T13:55:22.000-05:00
diff --git a/lib/stan_math b/lib/stan_math
@@ -1 +1 @@
-Subproject commit 52f7e9244d5367b74e4b4274d2a1c0e9f15a23f9
+Subproject commit 5b7cef499a9163cf6a07433a837eca6ebad0be5b
