test(redis): Install pytest-asyncio for redis tests (Python 3.12-13)

[szokeasaurusrex]

Although we run the redis tests on Python 3.12 and 3.13, we don't install pytest-asyncio on these versions. We likely should.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.28%. Comparing base (d48dc46) to head (a76c2ba).
Report is 1 commits behind head on master.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3706   +/-   ##
=======================================
  Coverage   84.28%   84.28%           
=======================================
  Files         133      133           
  Lines       14257    14257           
  Branches     2405     2405           
=======================================
  Hits        12017    12017           
  Misses       1490     1490           
  Partials      750      750           

see 2 files with indirect coverage changes