Load stub conditionally for messenger installations older then 8.1.0

Author: pscheit

src/Stubs/Symfony/StubFilesExtensionLoader.php

@@ -93,6 +93,10 @@ public function getFiles(): array
 			$files[] = $stubsDir . '/Symfony/Component/Messenger/StampInterface.stub';
 		}
 
+		if ($this->isInstalledVersionBelow('symfony/messenger', '8.1.0.0')) {
+			$files[] = $stubsDir . '/Symfony/Component/Messenger/TraceableMessageBus.stub';
+		}
+
 		if ($this->isInstalledVersionBelow('symfony/process', '5.4.0.0')) {
 			$files[] = $stubsDir . '/Symfony/Component/Process/Exception/LogicException.stub';
 			$files[] = $stubsDir . '/Symfony/Component/Process/Process.stub';