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     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.