feat: support valkey

[phi-friday]

closes: #1428

It has been half a year since the issue was raised, but I noticed that no related PR has been created, so I gave it a try.
I believe I made minimal changes, and I expect this will remain valid unless the APIs of Valkey and Redis change drastically.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 80.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.92%. Comparing base (efd1247) to head (6c52747).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/socketio/redis_manager.py	77.77%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              main    #1488      +/-   ##
===========================================
- Coverage   100.00%   99.92%   -0.08%     
===========================================
  Files           31       31              
  Lines         2530     2539       +9     
  Branches       432      432              
===========================================
+ Hits          2530     2537       +7     
- Misses           0        2       +2     

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[phi-friday]

I checked it late. Tomorrow, I will check the point where the error occurred and try to make sure the tests pass. However, since I am using WSL, it might be difficult to run tests locally.

[phi-friday]

It looks like PR #1479 also encountered errors only in the macOS tests, just like this PR, and the same error occurred in the same test. It seems there is nothing for me to fix except for formatting.