[roll] Roll fuchsia [network/tests] Shard socket integration test

Now that we support sharding these integration tests, apply this to the
socket integration test suite.

Multiply: socket-integration
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1274471
Original-Revision: 54b06007312424be0026d480414ede443c9c6150
GitOrigin-RevId: 7b0e411a8e8275b243f21b72d3e031b31d49e0ad
Change-Id: I8f6040ab703f06b5ae820edfba9118cd4a636a93
diff --git a/stem b/stem
index f31c8f6..810f9cd 100644
--- a/stem
+++ b/stem
@@ -8,7 +8,7 @@
              root=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="498c61433a8ae28117ef3ee2b64d92b14f0b21d4"
+             revision="54b06007312424be0026d480414ede443c9c6150"
              />
   </imports>
   <projects>