Update the compiler_builtins submodule

Fixes #43411

diff --git a/src/libcompiler_builtins b/src/libcompiler_builtins
index 5e49856003f33aa5781a0edca148be21025e18e7..6b9281d2b2f0ebb94838814b1e8ace2de4b7035b 160000 (submodule)
--- a/src/libcompiler_builtins
+++ b/src/libcompiler_builtins
@@ -1 +1 @@
-Subproject commit 5e49856003f33aa5781a0edca148be21025e18e7
+Subproject commit 6b9281d2b2f0ebb94838814b1e8ace2de4b7035b