[roll] Roll fuchsia [dns] Use fake clock in tests

This change eliminates use of real time for all these tests.
This reduces the chance of test flakes when these tests are run
on slower machines.
Original-Bug: 57075

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/495986
Original-Revision: 5f979ed453beaa920ff4620929906f0886440b10
GitOrigin-RevId: fbd0e49f719432138308e01cec91096f6e585b08
Change-Id: I7deff55470b8b0e51d450b9e57be28df50a5ef30
diff --git a/stem b/stem
index 46e2a72..811c6d7 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="7b84ec29d1d06da5cae082c9a70ba24edd6954af"/>
+             revision="5f979ed453beaa920ff4620929906f0886440b10"/>
   </projects>
   <hooks>
     <hook name="install-environment"