transport: Got too many pings from the client, closing the connection.

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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

TiDB meets many logs like "transport: Got too many pings from the client, closing the connection."

2. What did you expect to see? (Required)

No such log.

3. What did you see instead (Required)

Many logs.

4. What is your TiDB version? (Required)

v6.1.0