[roll] Roll fuchsia [elfldltl] Rename Diagnostics::strict to warnings_are_errors

This was meant to be done as review follow-up in the original
diagnostic.h introduction but was overlooked.

Original-Bug: 68285
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/622002
Original-Revision: 0e8f15d8b95ea602dd933c2e9c15fd000e8a4408
GitOrigin-RevId: 30394e107076428b7472e4045f2c32fec1569146
Change-Id: Ibfa0ba2dba6109958ec1a00d5cc9afc39121ecb4
diff --git a/stem b/stem
index 8b19c09..68a24e4 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="486c918b5ad2531b76ee58791031cd357b6c6778"/>
+             revision="0e8f15d8b95ea602dd933c2e9c15fd000e8a4408"/>
   </projects>
   <hooks>
     <hook name="install-environment"