[roll] Roll fuchsia [build] Suppress -Wcharacter-conversion errors in third_party

This is fixed in newer googletest, and can be removed, once we roll googletest.

Original-Fixed: 419546896
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1282194
Original-Revision: 490b006a4af60de94cf6b624dc6132e2429b749f
GitOrigin-RevId: ea3e13260fc1941320ffe9ac515b65d90558115a
Change-Id: Ieab961af5e287f99e85b2a8bcdc593bb1fd560e9
diff --git a/stem b/stem
index d98f6ea..911d59d 100644
--- a/stem
+++ b/stem
@@ -7,7 +7,7 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="58c14680d2902f390e892eb53b6e431cc086ebae"/>
+            revision="490b006a4af60de94cf6b624dc6132e2429b749f"/>
   </imports>
   <projects>
     <project name="cobalt"