style: address SMTP review feedback

src/Appwrite/Platform/Workers/Mails.php

@@ -175,7 +175,7 @@ class Mails extends Action
         $attachments = null;
         if (!empty($attachment['content'] ?? '')) {
             $attachments = [
-                self::createAttachment(
+                new Attachment(
                     name: $attachment['filename'] ?? 'unknown.file',
                     path: '',
                     type: $attachment['type'] ?? 'plain/text',
@@ -205,13 +205,4 @@ class Mails extends Action
             throw new Exception('Error sending mail: ' . $error->getMessage(), 500);
         }
     }
-
-    private static function createAttachment(
-        string $name,
-        string $path,
-        string $type,
-        ?string $content = null,
-    ): Attachment {
-        return new Attachment($name, $path, $type, $content);
-    }
 }

src/Appwrite/SMTP/SMTP.php

@@ -6,6 +6,7 @@ use InvalidArgumentException;
 use Utopia\Messaging\Adapter\Email as EmailAdapter;
 use Utopia\Messaging\Adapter\Email\SMTP as SMTPAdapter;
 use Utopia\Messaging\Messages\Email as EmailMessage;
+use Utopia\Messaging\Messenger;
 use Utopia\System\System;
 
 class SMTP
@@ -48,8 +49,7 @@ class SMTP
             return new Client(fn (EmailMessage $message): array => $adapters[0]->send($message));
         }
 
-        $messenger = 'Utopia\\Messaging\\Messenger';
-        $sender = new $messenger($adapters);
+        $sender = new Messenger($adapters);
 
         return new Client(fn (EmailMessage $message): array => $sender->send($message));
     }