Use Service ID zones where beneficial

The APIs for managing Service ID zones have been released in [`package:vm_service 14.3.0`](https://pub.dev/packages/vm_service/versions/14.3.0). These APIs can be used to free object IDs when they are no longer needed, to ensure that objects associated with those IDs are not retained for longer than necessary. I believe that [using Service ID zones in DAP](https://github.com/dart-lang/sdk/issues/56794) will have the biggest impact on the memory footprint of debugging, but please check if DevTools can benefit from these APIs in any way.

Start by reviewing the Service ID zone APIs released in vm_service 14.3.0 and the linked DAP issue 56794. No DevTools file or test is named, so inspect how DevTools manages Service IDs and determine whether zones reduce retained objects; done means documenting the benefit and implementing any justified use.

Written by the indexing model from the issue text.