message: Add deprecation message for statsd
diff: @@ -77,6 +77,8 @@ export async function runBridge(port: number, config: any, reg: AppServiceRegist
  logging.setUncaughtExceptionLogger(log as LoggerInstance);
  }
  if (config.ircService.statsd.hostname) {
  + log.warn("STATSD WILL BE DEPRECATED SOON")
  + log.warn("SEE https://github.com/matrix-org/matrix-appservice-irc/issues/818")
  stats.setEndpoint(config.ircService.statsd);
  }
  if (config.ircService.ident.enabled) {
  