merge: upstream

packages/backend/src/server/api/endpoints/i/2fa/register-key.ts

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: syuilo and other misskey contributors
+ * SPDX-FileCopyrightText: syuilo and misskey-project
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
@@ -48,7 +48,7 @@ export const meta = {
 				properties: {
 					id: {
 						type: 'string',
-						nullable: true,
+						optional: true,
 					},
 				},
 			},