Add the ability to start and stop IHostedService instances concurrently

[jerryk414]

Implements #68036

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Issue Details

---

Implements #68036

Author:	jerryk414
Assignees:	-
Labels:	new-api-needs-documentation, area-Extensions-Hosting
Milestone:	-

[jerryk414]

I'm not sure why the check runtime (Libraries Test Run release coreclr Linux_musl x64 Debug) is failing - i've checked the logs and everything i'm seeing indicates that the actual tests are succeeding but some portion of the process to run the tests is failing.

It looks like it's failing on the Send to Helix step. I did find a helix log that indicates that the issue is unrelated to my changes but related to an issue with uploading helix logs.

Seems like this could be related to #74699.

Any assistance would be appreciated.

[maryamariyan]

Thanks for the contribution @jerryk414 let me know if you have any blockers with addressing the remaining feedback.

[ghost]

This pull request has been automatically marked no-recent-activity because it has not had any activity for 14 days. It will be closed if no further activity occurs within 14 more days. Any new comment (by anyone, not necessarily the author) will remove no-recent-activity.

[tarekgh]

Closing it we can consider opening when we get more feedback.