Remove redundant async-timeout dependency from modern Python

[Zaczero]

Pull Request check-list

Please make sure to review and check all of these items:

• Do tests and lints pass with this change?
• Do the CI tests pass with this change (enable it first in your forked repo and wait for the github action build to finish)?
• Is the new or changed code fully tested?
• Is a documentation update included (if this change modifies existing APIs, or introduces new ones)?
• Is there an example added to the examples folder (if applicable)?
• Was the change added to CHANGES file?

NOTE: these things are not required to open a PR and can be done
afterwards / while the PR is open.

Description of change

#3174

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.87%. Comparing base (2f88840) to head (4ac6d40).
Report is 13 commits behind head on master.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3177      +/-   ##
==========================================
+ Coverage   91.84%   91.87%   +0.02%     
==========================================
  Files         128      128              
  Lines       33232    33322      +90     
==========================================
+ Hits        30523    30614      +91     
+ Misses       2709     2708       -1     

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