curl --request GET \
  --url https://api.usezombie.com/v1/workspaces/{workspace_id}/zombies/{zombie_id}/integration-grants \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "grant_id": "<string>",
      "service": "<string>",
      "status": "pending",
      "requested_at": 123,
      "approved_at": 123,
      "revoked_at": 123,
      "reason": "<string>"
    }
  ],
  "total": 123
}