Use AsyncRetry in acompletion_with_retries

[swiftdevil]

Title

This PR fixes the retry mechanism in main.acompletion_with_retries. Although this method is deprecated, it is used in the utils.client.wrapper_async method, which is not marked as deprecated - meaning this should be fixed, or utils.client.wrapper_async should be updated to use main.acompletion or router.acompletion.

Relevant issues

Similar to #4908 however updating utils.client.wrapper_async to use main.acompletion causes unexpected results.

Pre-Submission checklist

Please complete all items before asking a LiteLLM maintainer to review your PR

• I have Added testing in the tests/litellm/ directory, Adding at least 1 test is a hard requirement - see details
• I have added a screenshot of my new test passing locally
• My PR passes all unit tests on (make test-unit)[https://docs.litellm.ai/docs/extras/contributing_code]
• My PR's scope is as isolated as possible, it only solves 1 specific problem

Type

🐛 Bug Fix

Changes

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
litellm	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 14, 2025 6:43pm

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.