Creates an escalation policy

curl --request POST \
  --url https://api.rootly.com/v1/escalation_policies \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '
{
  "data": {
    "type": "escalation_policies",
    "attributes": {
      "name": "<string>",
      "description": "<string>",
      "repeat_count": 123,
      "group_ids": [
        "<string>"
      ],
      "service_ids": [
        "<string>"
      ],
      "business_hours": {
        "time_zone": "International Date Line West",
        "days": [
          "M"
        ],
        "start_time": "<string>",
        "end_time": "<string>"
      }
    }
  }
}
'

{
  "data": {
    "id": "0819584e-7af6-4a57-80d6-310e3b08ebd9",
    "type": "escalation_policies",
    "attributes": {
      "name": "Platform EP",
      "description": "test",
      "repeat_count": 5,
      "created_by_user_id": 134,
      "last_updated_by_user_id": 134,
      "group_ids": [
        "13797161-57e5-4b9e-994a-83be3c4e5500"
      ],
      "service_ids": [],
      "business_hours": {
        "time_zone": "America/New_York",
        "days": [
          "M",
          "T",
          "W",
          "R",
          "F"
        ],
        "start_time": "09:00",
        "end_time": "17:00"
      },
      "created_at": "2025-12-21T12:07:30.925-08:00",
      "updated_at": "2025-12-21T12:07:30.925-08:00"
    },
    "relationships": {
      "escalation_levels": {
        "data": []
      },
      "escalation_paths": {
        "data": []
      },
      "groups": {
        "data": [
          {
            "id": "13797161-57e5-4b9e-994a-83be3c4e5500",
            "type": "groups"
          }
        ]
      },
      "services": {
        "data": []
      }
    }
  }
}