fix: break up growing stack in AutoscaledPool.notify (#2422)

fixes #2421

Author: barjin

packages/core/src/autoscaling/autoscaled_pool.ts

@@ -453,7 +453,7 @@ export class AutoscaledPool {
  * every `maybeRunIntervalSecs` seconds. If you want to trigger the processing immediately, use this method.
  */
  async notify(): Promise<void> {
- await this._maybeRunTask();
+ setImmediate(this._maybeRunTask);
  }
 
  /**