List Groups

curl --request GET \
  --url https://api.example.com/groups

{
  "groups": [
    {
      "created_by": "<string>",
      "id": "<string>",
      "name": "<string>",
      "owner_org_id": "<string>",
      "created_at": "2023-11-07T05:31:56Z",
      "description": "<string>",
      "updated_at": "2023-11-07T05:31:56Z"
    }
  ]
}