@Override
    public int doSharding(long shardKey, int serverCount) {
        return (int) (shardKey % serverCount);
    }
@implNote Don't use "(int) (shardKey & (serverCount - 1))" because it requires that the
          serverCount should be a power of 2.
turms-server-common/src/main/java/im/turms/server/common/storage/redis/sharding/ModShardingAlgorithm.java