update submodule pointer

diff --git a/compiler/hetmet b/compiler/hetmet
index 3282a2b..67e0043 160000 (submodule)
--- a/compiler/hetmet
+++ b/compiler/hetmet
@@ -1 +1 @@
-Subproject commit 3282a2b78028238987a5a49e59d8e8d495aea0e1
+Subproject commit 67e004348a218f0addeff433e723496a328403ef