Review finish rateLimiterPlugin concurrent hanlder error

[lee yunlong]

Dear Community:

        I`ve finish rateLimiterPlugin concurrent hanlder error.

        Please help to review/comment. Thanks for your time!

        ISSUE : https://github.com/apache/shenyu/issues/3829.
        PR : https://github.com/apache/shenyu/pull/3852.

Thanks,
yunlongn