Merge pull request #57373 from nextcloud/carl/fix-deprecated-alias

fix: Usage of a deprecated alias

Author: nickvergessen

apps/provisioning_api/lib/AppInfo/Application.php

@@ -53,7 +53,7 @@ public function register(IRegistrationContext $context): void {
 			);
 		});
 		$context->registerService(ProvisioningApiMiddleware::class, function (ContainerInterface $c) {
-			$user = $c->get(IUserManager::class)->get($c->get('UserId'));
+			$user = $c->get(IUserManager::class)->get($c->get('userId'));
 			$isAdmin = false;
 			$isSubAdmin = false;