Fix more signatures

Author: andrewmy

pkg/enqueue/Tests/Symfony/Consumption/Mock/LimitsExtensionsCommand.php

@@ -18,7 +18,7 @@ public function getExtensions()
         return $this->extensions;
     }
 
-    protected function configure()
+    protected function configure(): void
     {
         parent::configure();
 

pkg/enqueue/Tests/Symfony/Consumption/Mock/QueueConsumerOptionsCommand.php

@@ -24,7 +24,7 @@ public function __construct(QueueConsumerInterface $consumer)
         $this->consumer = $consumer;
     }
 
-    protected function configure()
+    protected function configure(): void
     {
         parent::configure();