[roll] Roll fuchsia [ui][input] add tracing for keyboard and button events

From input_pipeline to starnix.

Original-Bug: b/400764664
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1226625
Original-Revision: 6c0f9d6ef259e18a308d2bd787832a72d4ed8841
GitOrigin-RevId: 5ab4bc7c3450e90d5c342a17db91ae8d1046a596
Change-Id: Id8a6cea5995f56d63b95b72f4282392894481706
diff --git a/stem b/stem
index 765b585..1df02dc 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="a1b0b0982e8bc258c2bc8c755fb8339d75a45a36"
+             revision="6c0f9d6ef259e18a308d2bd787832a72d4ed8841"
              />
   </projects>
   <hooks>