Apply fixes from StyleCI (#33857)

Author: driesvints

src/Illuminate/Queue/Listener.php

@@ -232,7 +232,7 @@ public function memoryExceeded($memoryLimit)
      */
     public function stop()
     {
-        die;
+        exit;
     }
 
     /**

src/Illuminate/Support/Collection.php

@@ -275,7 +275,7 @@ public function dd(...$args)
 
         call_user_func_array([$this, 'dump'], $args);
 
-        die(1);
+        exit(1);
     }
 
     /**

src/Illuminate/Support/helpers.php

@@ -559,7 +559,7 @@ function dd(...$args)
             (new Dumper)->dump($x);
         }
 
-        die(1);
+        exit(1);
     }
 }