Use builtins for type hints

[speller26]

Since we have deprecated Python 3.8.

Description of changes:

Testing done:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7bff44e) 100.00% compared to head (1422bb5) 100.00%.

❗ Current head 1422bb5 differs from pull request most recent head 331ac41. Consider uploading reports for the commit 331ac41 to get more accurate results

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #162   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           93        93           
  Lines         1398      1355   -43     
  Branches        25        25           
=========================================
- Hits          1398      1355   -43     

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[math411]

nice catch here!