List severities

curl --request GET \
  --url 'https://api.rootly.com/v1/severities?include=SOME_STRING_VALUE&page%5Bnumber%5D=SOME_INTEGER_VALUE&page%5Bsize%5D=SOME_INTEGER_VALUE&filter%5Bsearch%5D=SOME_STRING_VALUE&filter%5Bslug%5D=SOME_STRING_VALUE&filter%5Bname%5D=SOME_STRING_VALUE&filter%5Bseverity%5D=SOME_STRING_VALUE&filter%5Bcolor%5D=SOME_STRING_VALUE&filter%5Bcreated_at%5D%5Bgt%5D=SOME_STRING_VALUE&filter%5Bcreated_at%5D%5Bgte%5D=SOME_STRING_VALUE&filter%5Bcreated_at%5D%5Blt%5D=SOME_STRING_VALUE&filter%5Bcreated_at%5D%5Blte%5D=SOME_STRING_VALUE&sort=SOME_STRING_VALUE' \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'

{
  "data": [
    {
      "id": "<string>",
      "type": "severities",
      "attributes": {
        "name": "<string>",
        "slug": "<string>",
        "description": "<string>",
        "severity": "critical",
        "color": "<string>",
        "position": 123,
        "notify_emails": [
          "<string>"
        ],
        "slack_channels": [
          {
            "id": "<string>",
            "name": "<string>"
          }
        ],
        "slack_aliases": [
          {
            "id": "<string>",
            "name": "<string>"
          }
        ],
        "created_at": "<string>",
        "updated_at": "<string>"
      }
    }
  ],
  "links": {
    "self": "<string>",
    "first": "<string>",
    "prev": "<string>",
    "next": "<string>",
    "last": "<string>"
  }
}