Fixed bug in Maker-generated files.

See: https://github.com/symfony/symfony/discussions/54885#discussioncomment-9636839

src/Entity/Conference.php

@@ -73,7 +73,7 @@ class Conference
         return $this->isInternational;
     }
 
-    public function setInternational(bool $isInternational): static
+    public function setIsInternational(bool $isInternational): static
     {
         $this->isInternational = $isInternational;