Respect silence_deprecations? when warning

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: myabc

app/components/primer/open_project/border_box/collapsible_header.rb

@@ -113,7 +113,9 @@ def render?
         end
 
         def deprecation_warn(message)
-          ::Primer::ViewComponents.deprecation.warn(message) if !Rails.env.production?
+          return if Rails.env.production? || silence_deprecations?
+
+          ::Primer::ViewComponents.deprecation.warn(message)
         end
       end
     end