Drop claiming support and testing against EOL Python 3.8

[asmacdo]

Fixes #1503

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.64%. Comparing base (d5c4a3f) to head (fb076c8).
Report is 46 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1504      +/-   ##
==========================================
+ Coverage   88.56%   88.64%   +0.08%     
==========================================
  Files          77       77              
  Lines       10572    10572              
==========================================
+ Hits         9363     9372       +9     
+ Misses       1209     1200       -9     

Flag	Coverage Δ
unittests	88.64% <ø> (+0.08%)	⬆️

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[yarikoptic]

not yet, in a month or so whenever it actually EOLs

[asmacdo]

The 3.12 Test breaking is unrelated, its just a flake.

I bumped the timeout here fwiw.

[asmacdo]

I thought it was EOL on October 14, but its gone as of October 7. https://devguide.python.org/versions/

[yarikoptic]

Thank you! I am also going through similar fun activities in other corners

[github-actions]

🚀 PR was released in 0.64.0 🚀

[github-actions]

🚀 PR was released in 0.64.0 🚀