[roll] Roll fuchsia [netstack] Allow configuring IGMP/MLD version

Original-Bug: 117415
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/799905
Original-Revision: 8850ccfc56c3bfd2d1147e00afe4a1baf3b9613a
GitOrigin-RevId: e332edcf578927d55f1e963672f1499af6ce8be8
Change-Id: I010c46356cc69d0f2fffe6a200a81e98dae0d4d1
diff --git a/stem b/stem
index 7f6776d..869147f 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="a503cd99e2770845e8e0f990f458cd48fa622515"/>
+             revision="8850ccfc56c3bfd2d1147e00afe4a1baf3b9613a"/>
   </projects>
   <hooks>
     <hook name="install-environment"