[roll] Roll fuchsia [assembly] Product configs key packages by their name

The product configs now use BTreeMap<String, ProductPackageDetails>
instead of Vec<ProductPackageDetails>, so that the package name is
available to various tools.

Build systems don't generally know the package names, therefore they
cannot construct this map. Build systems can emit a Vec, and
the deserialization will convert that to a map with the names equating
to the index in the vector.

assembly_generate_config will convert those indexes to proper package
names. Any product config that is generated by assembly_generate_config
will then have the proper package names.

For now, we will continue supporting product configs with the old
format.

Original-Bug: 391673787
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1193117
Original-Revision: 829b93719daf85ec8f844a8a4e7e2c53d1a7ffb1
GitOrigin-RevId: a33ffd9adea047d9ada841b293f43313d76bf694
Change-Id: Idad36c478a08a28e2f568e72bca3788ce1f0a438

Author: Aidan Wolter

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="9c1bf44a6bea209dabb0e4446edebea66bd546fc"/>
+             revision="829b93719daf85ec8f844a8a4e7e2c53d1a7ffb1"/>
   </projects>
   <hooks>
     <hook name="install-environment"