Updates the Stan submodule to 59845f1ba.

stan-buildbot · stan-buildbot · commit 65f3145869a2 · 2025-06-10T22:43:42.000-04:00
diff --git a/stan b/stan
@@ -1 +1 @@
-Subproject commit ed3c04a11b7af28b2d8bb98cb0b6cf78bcaae219
+Subproject commit 59845f1ba9e6832da35a2f621549441b73384685
