Added the option to enable/disable MULTI/EXEC on client side caching feature. Avoid cluster shards on standalone connection.

[filipecosta90]

• Uses the fork of rueidis https://github.com/redis/rueidis/compare/main...filipecosta90:rueidis:arbitrary.cacheable?expand=1
• Introduced the flag -csc-use-multi-exec (false by default)

[codecov]

Codecov Report

Attention: 9 lines in your changes are missing coverage. Please review.

Comparison is base (820ad17) 69.42% compared to head (dedde8e) 69.51%.

Files	Patch %	Lines
redis-bechmark-go.go	52.63%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #36      +/-   ##
==========================================
+ Coverage   69.42%   69.51%   +0.08%     
==========================================
  Files           7        7              
  Lines         507      515       +8     
==========================================
+ Hits          352      358       +6     
- Misses        121      125       +4     
+ Partials       34       32       -2     

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