:bug: change realpath invocation

diff --git a/ast b/ast
index c403133e9914a9e86192b09495adf072365fe356..2769adadfe102e3cbc36419bba4d5d22f7d3a83b 160000 (submodule)
--- a/ast
+++ b/ast
@@ -1 +1 @@
-Subproject commit c403133e9914a9e86192b09495adf072365fe356
+Subproject commit 2769adadfe102e3cbc36419bba4d5d22f7d3a83b