[roll] Roll fuchsia [build][components] Test manifest shouldn't include components

Auto-generating a test manifest should stop looking for new
entries if it hits a component or a package.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/582187
Original-Revision: 604a13b1fc797b14410785d1266f71621be948c7
GitOrigin-RevId: 858d6c7d4ec62190170ca5a34145eab84dc6bb06
Change-Id: Ide62b14a9d08d788a67403d84ccd5c9c76a6ff7b
diff --git a/stem b/stem
index 6bb74fd..d77aa2b 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="6337c9b8943594357ec6a88c026668b12d3ecb6f"/>
+             revision="604a13b1fc797b14410785d1266f71621be948c7"/>
   </projects>
   <hooks>
     <hook name="install-environment"