Creates an escalation policy

curl --request POST \
  --url https://api.rootly.com/v1/escalation_policies \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN' \
  --header 'content-type: application/vnd.api+json'

{
  "data": {
    "id": "b1d1daa5-f3a6-4166-b29d-09ed424130a4",
    "type": "escalation_policies",
    "attributes": {
      "name": "Platform EP",
      "description": "test",
      "repeat_count": 5,
      "created_by_user_id": 98,
      "last_updated_by_user_id": 98,
      "group_ids": [],
      "service_ids": [],
      "created_at": "2025-03-13T12:00:13.647-07:00",
      "updated_at": "2025-03-13T12:00:13.647-07:00"
    },
    "relationships": {
      "escalation_levels": {
        "data": []
      },
      "escalation_paths": {
        "data": []
      },
      "groups": {
        "data": []
      },
      "services": {
        "data": []
      }
    }
  }
}