[roll] Roll fuchsia [rust][3p] Add feature to windows-sys fork.

This feature is required by tokio after https://fxrev.dev/1163134
and its absence seems to break doc generation.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1167892
Original-Revision: 50b17080b13a823cd31e62060d77f62ac2fa7069
GitOrigin-RevId: 30c2c9760a1cc8f865097ee17e85e202b88a7c69
Change-Id: Ie44c2cd89be983579429b2df565c1eacb0865a0e

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="c359dd8a9ac7f0f2327e433f4c26d294f8ec7d49"/>
+             revision="50b17080b13a823cd31e62060d77f62ac2fa7069"/>
   </projects>
   <hooks>
     <hook name="install-environment"