test: Reset sharing app config after test

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

build/integration/features/bootstrap/SharingContext.php

@@ -27,6 +27,7 @@ protected function resetAppConfigs() {
 		$this->deleteServerConfig('core', 'shareapi_default_expire_date');
 		$this->deleteServerConfig('core', 'shareapi_expire_after_n_days');
 		$this->deleteServerConfig('core', 'link_defaultExpDays');
+		$this->deleteServerConfig('files_sharing', 'outgoing_server2server_share_enabled');
 
 		$this->runOcc(['config:system:delete', 'share_folder']);
 	}