[roll] Roll fuchsia [radar][bin] Make clients accept both OnBurst and OnBurst2

Make clients accept both types of events so that servers can be switched
to OnBurst2 separately.

Original-Bug: 99924
Test: fx test radar-proxy-test radarutil-test
Test: Ran radar-integration-test on Nelson
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/836896
Original-Revision: dd499932868c4ab2c5714d1c88fb0baf87189fe3
GitOrigin-RevId: e103a8e70b52f105739b967c2a8e455b191d19e6
Change-Id: I3bf526bed97d8166bd4018df9b717c827693c924
diff --git a/stem b/stem
index d120e35..6b60d0f 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="e2af4154528152a0aaf835cb40ec977956b3617a"/>
+             revision="dd499932868c4ab2c5714d1c88fb0baf87189fe3"/>
   </projects>
   <hooks>
     <hook name="install-environment"