Get gateway information

curl --request GET \
  --url https://api.fluxer.app/v1/gateway/bot

{
  "url": "<string>",
  "shards": 123,
  "session_start_limit": {
    "total": 123,
    "remaining": 123,
    "reset_after": 123,
    "max_concurrency": 123
  }
}