feat: Add AsyncConfig for the async SDK client - #471

Bugbot Analysis Progress (1m 51s elapsed)

✅ Gathered PR context (2s)
✅ Completed bug detection (1m 48s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_910a9655-f5d7-4b7b-8a5b-537b0d5ca77c