[roll] Roll fuchsia [firmware] Use Rust log instead of tracing

Context at: http://go/fuchsia-rust-log

Original-Bug: 344980783
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1178386
Original-Revision: 837fc0062825bd10b92bd5f293171183cef368a5
GitOrigin-RevId: 5058c10f6d6f27a1379d2c2650a58ee76fc17036
Change-Id: I2ae77e1b78ffff1fb7bcd0134783d6067edf89ca
diff --git a/stem b/stem
index f477762..1aad7dd 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="d7349fe48313704dfb0cf5a9dbef962bc670e3a8"/>
+             revision="837fc0062825bd10b92bd5f293171183cef368a5"/>
   </projects>
   <hooks>
     <hook name="install-environment"