[roll] Roll fuchsia [pbm] Always default to the local bundle in-tree

This CL modifies the product-bundle selection code (called when
disambiguating multiple available product bundles) to always default to
the bundle generated by the in-tree build when it's available. If no
local build is available (which shouldn't be common), it will fall back
on the previous behavior of selecting the first in a reverse-sorted
list.

Original-Bug: 98978
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/734987
Original-Revision: 9a297df693ea62b8aa8aa1549c7e1fa104fde0a2
GitOrigin-RevId: 17061886fe5db28adcba8b42d3d1f7d50be708a6
Change-Id: I4aee81273c37506f2cae7982afd96cebfe494ddd
diff --git a/stem b/stem
index 2e1a46d..ee63eaf 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="ecb8d1df3d42d4ca53fe550159aef0fe5849d633"/>
+             revision="9a297df693ea62b8aa8aa1549c7e1fa104fde0a2"/>
   </projects>
   <hooks>
     <hook name="install-environment"