docs: add build verification note for fuselage-tokens

sm-28601 · sm-28601 · commit 8b016af285d6 · 2025-04-05T14:57:15.000+05:30
diff --git a/packages/fuselage-tokens/README.md b/packages/fuselage-tokens/README.md
@@ -77,3 +77,5 @@ yarn lint-and-fix
 ```
 
 <!--/yarn(lint-and-fix)-->
+
+Build instructions verified using Yarn 4.7.0.
