s3select : revert previous changes. change the string-allocator in class-value

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

diff --git a/src/s3select b/src/s3select
index 189759ce9e9eeea7bc513e3e7c745ca09c594bc4..d889dd77d64fff46f1124086ddf90c67b0bc1293 160000 (submodule)
--- a/src/s3select
+++ b/src/s3select
@@ -1 +1 @@
-Subproject commit 189759ce9e9eeea7bc513e3e7c745ca09c594bc4
+Subproject commit d889dd77d64fff46f1124086ddf90c67b0bc1293