Updates the Math submodule to faffb4a.

stan-buildbot · stan-buildbot · commit 7e76882d2b4b · 2022-10-27T09:06:16.000-04:00
diff --git a/lib/stan_math b/lib/stan_math
@@ -1 +1 @@
-Subproject commit 224e5812c0c4885f5420caa72275f64f0b2568ed
+Subproject commit faffb4a4e84ab4a9b24b8d0d213a99a6a6048c01
