:art: Update submodule

diff --git a/ast b/ast
index ede883f367c4d287a294282d6a64cd8cffe7bff7..2a5fbf66377f46d58a98f1b4f53223edbb8af2c5 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit ede883f367c4d287a294282d6a64cd8cffe7bff7
+Subproject commit 2a5fbf66377f46d58a98f1b4f53223edbb8af2c5

diff --git a/util b/util
index 863ada7a4e8ce8b38539ed06bd0ec4068549375c..55c0e0b112007b50e6e5afb9736d1b04b5fe0ad4 160000 (submodule)
--- a/util
+++ b/util
@@ -1 +1 @@
-Subproject commit 863ada7a4e8ce8b38539ed06bd0ec4068549375c
+Subproject commit 55c0e0b112007b50e6e5afb9736d1b04b5fe0ad4