Updates the Stan submodule to 308a9485d.

stan-buildbot · stan-buildbot · commit 05a149aef256 · 2024-11-21T14:53:08.000-05:00
diff --git a/stan b/stan
@@ -1 +1 @@
-Subproject commit 8ce00ef2bc86bf4bd9f8e2cea15ab071fdd31299
+Subproject commit 308a9485d928a7885629ab99ad8491769caef158
