fix(oauth2): missing property declaration

Signed-off-by: Maxence Lange <maxence@artificial-owl.com>

Author: ArtificialOwl

lib/private/AppFramework/Bootstrap/RegistrationContext.php

@@ -161,6 +161,9 @@ class RegistrationContext {
 	/** @var ServiceRegistration<IMailProvider>[] */
 	private $mailProviders = [];
 
+	/** @var class-string<IGlobalScaleService>|null */
+	private ?string $globalScaleService = null;
+
 	public function __construct(LoggerInterface $logger) {
 		$this->logger = $logger;
 	}