[roll] Roll fuchsia [workstation] Require pinweaver on boards that support it.

This is the final step of the rollout. Any accounts created in the last
~month will already be using pinweaver, Chromebooks without a pinweaver
account will need to reboot then set a new password after this lands.

Original-Bug: 105571
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/723026
Original-Revision: 1976412b16ee53b065b03815db7206038b804941
GitOrigin-RevId: 1c9269b3e1a962c21d18565bbf9ec52c0d973a8c
Change-Id: I2b2660dddc1c60fab5fa06c55f2c3c6773f5ffc8
diff --git a/stem b/stem
index 6a3c719..ed17d43 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="1f89e04c9f011b79a1888b3820a6d36c8bc8d6c3"/>
+             revision="1976412b16ee53b065b03815db7206038b804941"/>
   </projects>
   <hooks>
     <hook name="install-environment"