[roll] Roll fuchsia [kernel][ktl] Add ktl::destroy_at

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1209084
Original-Revision: 9f3d25bc81e3b776efb9a8727d3a1e22ba3020a8
GitOrigin-RevId: 6bda9329c6207130a7ee0f51808b210d3632c91e
Change-Id: I6070acd5f468caea9b3abcae83f3a3604beae099
diff --git a/stem b/stem
index a30273e..3dea49b 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="85c941ffce75af8344bd0bc0a3ea4e1cc143ee7a"/>
+             revision="9f3d25bc81e3b776efb9a8727d3a1e22ba3020a8"/>
   </projects>
   <hooks>
     <hook name="install-environment"