修复修复fix redis cluster异常问题

[tianshaokui]

redis资源添加集群模式访问，之前的修复存在问题。

1. 在dockerfile安装redis >= 4.1.0 需要考虑兼容问题，并需卸载原版本
2. 我是用兼容redis==3.5.3的 redis-py-cluster==2.1.3完成集群访问问题，亲测有效

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 77.82%. Comparing base (30585b0) to head (1936d8c).

Files	Patch %	Lines
sql/engines/redis.py	50.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2748   +/-   ##
=======================================
  Coverage   77.82%   77.82%           
=======================================
  Files         122      122           
  Lines       16855    16856    +1     
=======================================
+ Hits        13117    13118    +1     
  Misses       3738     3738           

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