many runaway errors in log

[lance6716]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

checked any log

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

3. What did you see instead (Required)

for every second

[2024/03/23 10:25:46.302 +08:00] [ERROR] [runaway.go:147] ["try to get new runaway watch"] [error="[schema:1146]Table 'mysql.tidb_runaway_watch' doesn't exist"]

4. What is your TiDB version? (Required)

[lance6716]

ptal @CabinfeverB

[HuSharp]

/affects-8.1