[roll] Roll fuchsia [media] Use non-discardable fidl::Result

fidl::Result will soon be marked [[nodiscard]], making it necessary to
use the value. For the sake of this CL, all usages of fidl::Result that
previously discarded the value have been migrated to assert that the
result status is ZX_OK.

Original-Bug: 94739
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/653430
Original-Revision: 07078d6dd037b6e7d12c5a65c706616bbb5a1a0f
GitOrigin-RevId: 71c1b95fcac8ccc66efefe5f0198be4aaccb7439
Change-Id: Ib3d8a9a2ae88a6ef73056f86eb1e42e46b9cb66f
diff --git a/stem b/stem
index 11e591e..1b703fb 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="f41d16a8db574a40d92f5cb8d80413d8b7d89d17"/>
+             revision="07078d6dd037b6e7d12c5a65c706616bbb5a1a0f"/>
   </projects>
   <hooks>
     <hook name="install-environment"