Install controller signals inside Sync.

Assisted-By: devx/3236e566-7538-432e-a30a-2bdf37265ed4

Author: samuel-williams-shopify

lib/async/container/controller.rb

@@ -300,16 +300,16 @@ def reload
 			def run(signals: Async::Signals.default)
 				@notify&.status!("Initializing controller...")
 
-				signals.install(@signals) do
-					Sync do |task|
+				Sync do |task|
+					signals.install(@signals) do
 						self.start
 
 						waiter = task.async{wait_for_container}
 
 						while event = @events.pop
 							event.call
 						end
-					rescue Async::Cancel
+					rescue Async::Cancel, Interrupt
 						# Graceful shutdown:
 						self.stop
 					ensure