Updates utils-x11: f397f4c Fix: session: qutebrowser: ignore non-yml files

diff --git a/utils-x11 b/utils-x11
index 8d8ea521dcddba978309d9a2cd2a453066a37d87..f397f4cdca0a8447b6f576fb08d77d41cbe29f57 160000 (submodule)
--- a/utils-x11
+++ b/utils-x11
@@ -1 +1 @@
-Subproject commit 8d8ea521dcddba978309d9a2cd2a453066a37d87
+Subproject commit f397f4cdca0a8447b6f576fb08d77d41cbe29f57