curl --request POST \
  --url https://app.dograh.com/api/v1/campaign/{campaign_id}/pause

{
  "id": 123,
  "name": "<string>",
  "workflow_id": 123,
  "workflow_name": "<string>",
  "state": "<string>",
  "source_type": "<string>",
  "source_id": "<string>",
  "total_rows": 123,
  "processed_rows": 123,
  "failed_rows": 123,
  "created_at": "2023-11-07T05:31:56Z",
  "started_at": "2023-11-07T05:31:56Z",
  "completed_at": "2023-11-07T05:31:56Z",
  "retry_config": {
    "enabled": true,
    "max_retries": 123,
    "retry_delay_seconds": 123,
    "retry_on_busy": true,
    "retry_on_no_answer": true,
    "retry_on_voicemail": true
  },
  "max_concurrency": 123,
  "schedule_config": {
    "enabled": true,
    "timezone": "<string>",
    "slots": [
      {
        "day_of_week": 123,
        "start_time": "<string>",
        "end_time": "<string>"
      }
    ]
  },
  "circuit_breaker": {
    "enabled": false,
    "failure_threshold": 0.5,
    "window_seconds": 120,
    "min_calls_in_window": 5
  }
}