br/restore: restore may OOM when there are many tables and log backup enabled #59835
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
1. Minimal reproduce step (Required)
Enable log backup, then restore with a backup contains ~200k tables from S3.
2. What did you expect to see? (Required)
Should success, though slow.
3. What did you see instead (Required)
OOM when CopySST was throttled, BR OOMs.
4. What is your TiDB version? (Required)
Current master.