List passkeys

curl --request GET \
  --url https://api.guile.app/auth/passkeys \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "iPhone 15 Pro",
      "credentialId": "<string>",
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "lastUsedAt": "2023-11-07T05:31:56Z"
    }
  ],
  "count": 1
}