Add option param to disable zookeeper keepalive

[s5364733]

Describe the bug

Existing logic, for zk SESSION persistence nodes will be continuously created for the same client. code show as below

func (z *zookeeperRegistry) keepalive(ctx context.Context, path string, content []byte) {
    sessionID := z.conn.SessionID()
    ticker := time.NewTicker(time.Second)
    defer ticker.Stop()
    for {
        select {
        case <-ctx.Done():
            return
        case <-ticker.C:
            cur := z.conn.SessionID()
            if cur != 0 && sessionID != cur {
                if err := z.createNode(path, content, true); err == nil {
                    sessionID = cur
                }
            }
        }
    }
}

In the development environment, if there is a problem with the registered machine itself, you may have to change the machine, or delete this option on zookeeper . This is not a very elegant way to deal with it. In addition, I understand that SESSION retention and SESSION disconnection and reconstruction are two things. concept

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Expected behavior

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Kitex version:

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Environment:

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[DMwangnima]

Refer to https://github.com/kitex-contrib/codec-dubbo/pull/87 for details.