[roll] Roll fuchsia [configc] Generate Rust functions to parse config from VMOs.

This makes it possible for runners written in Rust (like Starnix)
to parse structured config on behalf of the programs they run.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1235172
Original-Revision: 42012194192142a4c10dcea184b9085623156b4d
GitOrigin-RevId: 4733b08a76c6c9bdc6c6b8aa293a0847afeacb94
Change-Id: Id752a29c5f181d44c8796e2bf560fff44f7def0f

Author: Adam Perry

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="326b7dc49c17813e16ffeeff155cb247da3b42d5"/>
+             revision="42012194192142a4c10dcea184b9085623156b4d"/>
   </projects>
   <hooks>
     <hook name="install-environment"