Submit an attempt for a quiz

curl -X POST "https://example.com/api/v1/quiz/submit" \
  -H "Authorization: <token>" \
  -H "Content-Type: application/json" \
  -d '{
    "attemptId": "string",
    "timeTaken": 0,
    "responses": [
      {
        "questionId": null,
        "answers": null
      }
    ]
  }'