Register TYPE_SMTP in mock source/destination supported resources

Author: premtsd-code

tests/Migration/Unit/Adapters/MockDestination.php

@@ -53,6 +53,7 @@ public static function getSupportedResources(): array
             Resource::TYPE_MEMBERSHIP,
             Resource::TYPE_PLATFORM,
             Resource::TYPE_API_KEY,
+            Resource::TYPE_SMTP,
             Resource::TYPE_PROVIDER,
             Resource::TYPE_TOPIC,
             Resource::TYPE_SUBSCRIBER,

tests/Migration/Unit/Adapters/MockSource.php

@@ -82,6 +82,7 @@ public static function getSupportedResources(): array
             Resource::TYPE_MEMBERSHIP,
             Resource::TYPE_PLATFORM,
             Resource::TYPE_API_KEY,
+            Resource::TYPE_SMTP,
             Resource::TYPE_PROVIDER,
             Resource::TYPE_TOPIC,
             Resource::TYPE_SUBSCRIBER,