curl --request GET \
  --url http://localhost:3301/api/v1/agent-configurations/variants \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "agent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "variant": "<string>",
      "version": 123,
      "variant_version": 123,
      "schema_version": 123,
      "schema": {},
      "value": {},
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ],
  "trail": "<string>"
}