[roll] Roll fuchsia [superproject] Roll third_party/mesa [fuchsia] Placate hermeticity checker.

u_trace.py was not explicitly listed as an input to u_tracepoints.py.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/mesa/+/1036252
Original-Revision: 42378d506c3d5cc2d92e0a47181100f1ca301875
GitOrigin-RevId: 632910bc90c8533fabaf6a625fb38c175c226f32
Roller-URL: https://ci.chromium.org/b/8749644262774442577
CQ-Do-Not-Cancel-Tryjobs: true
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1037266
Original-Revision: 854e54c06c741aeb93db5cec265f9260d24f9986
Change-Id: Ifc244f729ea8b609cada9134eda67f1d1117855c
diff --git a/stem b/stem
index 4a89173..bf66a69 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="017ae611eaf7a7c59eeb4c16a484ecd983336226"/>
+             revision="854e54c06c741aeb93db5cec265f9260d24f9986"/>
   </projects>
   <hooks>
     <hook name="install-environment"