message: chore: bump API_VERSION to v9
diff: export const BASE_URL = "https://discord.com/api";
  /** https://discord.com/developers/docs/reference#api-versioning-api-versions */
  -export const API_VERSION = 8;
  +export const API_VERSION = 9;
  /** https://discord.com/developers/docs/topics/gateway#gateways-gateway-versions */
  export const GATEWAY_VERSION = 8;
  