[roll] Roll fuchsia [fidlc] Remove special handling of 'handle'

Instead of hard coding "handle" as being a handle type (and then looking
up whether a resource definition exists to support this type), we
register the handle type template when we encounter a resource
definition as we do for other types.

Original-Fixed: 77101
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/580181
Original-Revision: f6db9b6cad94afd90a38316e6726b8aa0e30b21a
GitOrigin-RevId: 9f741da8a00c5d67daba6ace298fc637c64a78b2
Change-Id: I19f7630e42a7c43b32efe8bb5440f190593341a3
diff --git a/stem b/stem
index ec7ab09..4ea0fc2 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="231d7219fbf13a745837be420679708d8ba0c6f7"/>
+             revision="f6db9b6cad94afd90a38316e6726b8aa0e30b21a"/>
   </projects>
   <hooks>
     <hook name="install-environment"