feat: Add GearsCmdable to go-redis API adapter

[unknowntpo]

This PR adds GearsCmdable to our go-redis API adapter, and copied the tests from go-redis to make sure that it's compatible.

[codecov-commenter]

Codecov Report

Attention: 19 lines in your changes are missing coverage. Please review.

Comparison is base (55961cc) 97.56% compared to head (53eef52) 97.51%.
Report is 1 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #395      +/-   ##
==========================================
- Coverage   97.56%   97.51%   -0.06%     
==========================================
  Files          76       76              
  Lines       30737    30848     +111     
==========================================
+ Hits        29990    30082      +92     
- Misses        627      641      +14     
- Partials      120      125       +5     

Files	Coverage Δ
internal/cmds/gen_triggers_and_functions.go	100.00% <100.00%> (ø)
rueidiscompat/adapter.go	95.07% <92.30%> (-0.10%)	⬇️
rueidiscompat/command.go	78.83% <60.60%> (-0.39%)	⬇️

... and 2 files with indirect coverage changes

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[rueian]

Thank you for your contribution! @unknowntpo

[unknowntpo]

Thanks for reviewing my code, @rueian.