Issue #3266160 by smustgrave, alex.skrypnyk, tannguyenhn, beatrizrodrigues, joachim, larowlan: Composer Scaffold plugin calls dispatch() instead of dispatchScript()

(cherry picked from commit a61eee36d29c6e3a09ca53cd6314ce09db2a5d27)

Author: alexpott

Handler.php

@@ -143,7 +143,7 @@ public function scaffold() {
 
     // Call any pre-scaffold scripts that may be defined.
     $dispatcher = $this->composer->getEventDispatcher();
-    $dispatcher->dispatch(self::PRE_DRUPAL_SCAFFOLD_CMD);
+    $dispatcher->dispatchScript(self::PRE_DRUPAL_SCAFFOLD_CMD);
 
     // Fetch the list of file mappings from each allowed package and normalize
     // them.
@@ -178,7 +178,7 @@ public function scaffold() {
     $gitIgnoreManager->manageIgnored($scaffold_results, $scaffold_options);
 
     // Call post-scaffold scripts.
-    $dispatcher->dispatch(self::POST_DRUPAL_SCAFFOLD_CMD);
+    $dispatcher->dispatchScript(self::POST_DRUPAL_SCAFFOLD_CMD);
   }
 
   /**