s3select : refactor for AST nodes cleanup routine

Signed-off-by: galsalomon66 <gal.salomon@gmail.com>

diff --git a/src/s3select b/src/s3select
index d889dd77d64fff46f1124086ddf90c67b0bc1293..757184fdcb857612ce83707119c5960f3a3af5b5 160000 (submodule)
--- a/src/s3select
+++ b/src/s3select
@@ -1 +1 @@
-Subproject commit d889dd77d64fff46f1124086ddf90c67b0bc1293
+Subproject commit 757184fdcb857612ce83707119c5960f3a3af5b5