updated changeset

Author: zamoore

.changeset/spicy-ads-roll.md

@@ -3,5 +3,8 @@
 ---
 
 <!-- START components/side-nav -->
-`SideNav`
+`SideNav` - Removed deprecated features
+- Removed the `@ariaLabel` argument
+- Removed the `HdsSideNavHeaderIconButton` component
+- Updated the deprecation removal version from `5.0.0` to `6.0.0`
 <!-- END -->