Add changelog entry for html_safe fix in render_in

Co-authored-by: joelhawksley <1940294+joelhawksley@users.noreply.github.com>
Agent-Logs-Url: https://github.com/ViewComponent/view_component/sessions/039c0c05-2746-411e-acce-af421239caa1

Author: Copilot

docs/CHANGELOG.md

@@ -10,6 +10,10 @@ nav_order: 6
 
 ## main
 
+* Return `html_safe` empty string from `render_in` when `render?` is false.
+
+    *Copilot*
+
 ## 4.5.0
 
 * Fix initialization ordering issue causing missing asset errors in Sprockets.