[roll] Roll fuchsia [audio] Remove TODO to add max source limit in MixerNode

Original-Bug: 87651

Test: audio_services_mixer_fidl_unittests
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/755203
Original-Revision: 5780fd2058dbb80b497f326fe8655cd30fee8b7f
GitOrigin-RevId: f77288296a67a794001460d3b136d2b88df18b92
Change-Id: Ia04a028ba41fe2f9a4e346b95f7c663f9b8965ad
diff --git a/stem b/stem
index 4b79807..e582a27 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="c600badf79ebacedb6ae962979ddea84890164f1"/>
+             revision="5780fd2058dbb80b497f326fe8655cd30fee8b7f"/>
   </projects>
   <hooks>
     <hook name="install-environment"