NTR: fix mail aware in SW 6.4

polyfill/Shopware/Core/Framework/Event/MailActionInterface.php

@@ -0,0 +1,21 @@
+<?php declare(strict_types=1);
+
+namespace Shopware\Core\Framework\Event;
+
+if (interface_exists(MailActionInterface::class)) {
+    return;
+}
+
+use Shopware\Core\Framework\Event\EventData\MailRecipientStruct;
+use Shopware\Core\Framework\Log\Package;
+
+/**
+ * @deprecated tag:v6.5.0 - Will be removed in v6.5.0 Use MailAware instead
+ */
+#[Package('business-ops')]
+interface MailActionInterface extends BusinessEventInterface
+{
+    public function getMailStruct(): MailRecipientStruct;
+
+    public function getSalesChannelId(): ?string;
+}

polyfill/Shopware/Core/Framework/Event/MailAware.php

@@ -8,7 +8,7 @@
 
 use Shopware\Core\Framework\Event\EventData\MailRecipientStruct;
 
-interface MailAware extends BusinessEventInterface
+interface MailAware extends MailActionInterface
 {
     public const MAIL_STRUCT = 'mailStruct';