[roll] Roll fuchsia [assembly] Add empty test group for fuchsia builders

The fuchsia builders will include this test group, and then we will
add tests. Doing it in this order will allow us to test these tests
in CQ before adding them.

Original-Bug: 407825733
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1264564
Original-Revision: 1fd3270e6e7fcdf25dd735b4caf53da0a6ee5caf
GitOrigin-RevId: b1cbf6f5fee4ea2657d2dc10c622ae437e3b3436
Change-Id: Id51df8e374ec40bc7c01f60edb9e6f8be96616e3
diff --git a/stem b/stem
index f2194da..14e7e19 100644
--- a/stem
+++ b/stem
@@ -8,7 +8,7 @@
              root=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="8dcfb6aac17ce5cd9288db403484f82fc003c79c"
+             revision="1fd3270e6e7fcdf25dd735b4caf53da0a6ee5caf"
              />
   </imports>
 </manifest>