[roll] Roll fuchsia [cml] Update "config_key" to "key" in Use

In the Use block, update the "config_key" to just "key".

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/999613
Original-Revision: 58252c117acbb00205db859dddfb24aa3cdba931
GitOrigin-RevId: 199d8ab238693501afd29f7e955da3c71e215101
Change-Id: I90d92a9faddaff47601d62ea06eb12c997f12025
diff --git a/stem b/stem
index b3642c4..7025712 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="011c3db7d5acca341d02724123ca80748c9ac8e4"/>
+             revision="58252c117acbb00205db859dddfb24aa3cdba931"/>
   </projects>
   <hooks>
     <hook name="install-environment"