After a pool is created and deleted, an error occurs when the pool is re-created with NewSPMCPool

[zimulala]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

pool, _ := NewSPMCPool[int, int, ConstArgs, any, pooltask.NilContext]("TestPool", 10, rmutil.UNKNOWN)
pool.ReleaseAndWait()
var err error
pool, err = NewSPMCPool[int, int, ConstArgs, any, pooltask.NilContext]("TestPool", 10, rmutil.UNKNOWN)

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

err is nil

3. What did you see instead (Required)

error is pool is already exist

4. What is your TiDB version? (Required)

Release Version: v6.6.0-alpha-210-gaef752a40
Edition: Community
Git Commit Hash: aef752a407aca3cd379f9941cd51f475abea9bcb
Git Branch: master