:art: Update submodules

diff --git a/ast b/ast
index 7db5bef95d387ded3e07e19792a8dfea2f19742d..443d0e3daf96f5045b931c1c8bd58474329cc716 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit 7db5bef95d387ded3e07e19792a8dfea2f19742d
+Subproject commit 443d0e3daf96f5045b931c1c8bd58474329cc716

diff --git a/util b/util
index 55e2a6ba6d382f8dcb27661773df82de5fe9c470..8f6468d8edb711d41899a5378a6540bc09d25f2e 160000 (submodule)
--- a/util
+++ b/util
@@ -1 +1 @@
-Subproject commit 55e2a6ba6d382f8dcb27661773df82de5fe9c470
+Subproject commit 8f6468d8edb711d41899a5378a6540bc09d25f2e