Updating Stan to tagged v2.34.0

Nicusor Serban · Nicusor Serban · commit 2fda0a7fa3b7 · 2024-01-16T12:56:53.000+01:00
diff --git a/stan b/stan
@@ -1 +1 @@
-Subproject commit 706b751cc7992166cc906d963576c45934cf92d1
+Subproject commit 16f723b895d79b40ebfef9b20a56df951664ac6f
