add TPS control for importUrlReference and importFileReference API functions

[feich-ms]

Versions

latest main 4.10.1

Describe the bug

Current there are no TPS control for importUrlReference and importFileReference function which cause composer running into tps issues when they are leveraging the concurrence capabilty of qna maker service.
Currently composer is controlling the tps itself when calling above apis. It will be addressed if still running into this issue after tps controlled in caller side.

To Reproduce

Steps to reproduce the behavior:

1. call importUrlReference or importFileReference with high concurrence(more than 3)
2. You will see it may hit the rate limit issue of the API calls

Expected behavior

add tps control so that it can avoid the rate limit issue

Screenshots

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Additional context

Add any other context about the problem here.

[bug]

[feich-ms]

close this first and can reopen it when users still run into this issue after the concurrency control in composer side.