:art: Update prettyerr [skip ci]

diff --git a/ast b/ast
index c245f1f3c808ded546f81360f21b82648f2d1720..769c90d7a0665d2ed47fcb653922bedc3d1103c4 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit c245f1f3c808ded546f81360f21b82648f2d1720
+Subproject commit 769c90d7a0665d2ed47fcb653922bedc3d1103c4