add type

ext/web/lib.deno_web.d.ts

@@ -442,6 +442,7 @@ declare var AbortSignal: {
  readonly prototype: AbortSignal;
  new (): never;
  abort(reason?: any): AbortSignal;
+ any(signals: AbortSignal[]): AbortSignal;
  timeout(milliseconds: number): AbortSignal;
 };