Get Announcements

curl --request GET \
  --url https://api-evm.orderly.org/v1/public/announcement

{
  "success": true,
  "timestamp": 1702989203989,
  "data": {
    "announcement_id": 1,
    "message": "Position information is incorrect due to a 1-minute delay.",
    "url": "null"
  }
}