Migrated from Symfony\Component\Console\Application#add() (deprecated) to #addCommand()

Author: Ocramius

bin/roave-backward-compatibility-check.php

@@ -327,7 +327,7 @@ static function (string $installationPath) use ($composerIo): Installer {
         ),
     );
 
-    $application->add($apiCompareCommand);
+    $application->addCommand($apiCompareCommand);
     $application->setDefaultCommand('roave-backwards-compatibility-check:assert-backwards-compatible');
 
     $output->getErrorOutput()