fix rector

Author: rez1dent3

src/Internal/Service/DispatcherService.php

@@ -27,7 +27,7 @@ public function dispatch(EventInterface $event): void
 
     public function flush(): void
     {
-        foreach ($this->events as $event => $value) {
+         foreach (array_keys($this->events) as $event) {
             $this->dispatcher->flush($event);
         }
 
@@ -37,7 +37,7 @@ public function flush(): void
 
     public function forgot(): void
     {
-        foreach ($this->events as $event => $value) {
+        foreach (array_keys($this->events) as $event) {
             $this->dispatcher->forget($event);
         }