build: update gnulib for fstatat cross-compile improvement

diff --git a/gnulib b/gnulib
index 667561d720dd1e22b51fe5d308a8f94d49d46b85..17febe7763c9ef38ed1ced5f08f022168e198929 160000 (submodule)
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit 667561d720dd1e22b51fe5d308a8f94d49d46b85
+Subproject commit 17febe7763c9ef38ed1ced5f08f022168e198929