subprocess: Backport typeshed typings

[tony]

Changes

Backport typings

Backport typings since October 2022 onward: https://github.com/python/typeshed/commits/main/stdlib/subprocess.pyi

• universal_newlines being optional: https://github.com/python/typeshed/blob/1ce1c1ad17c6eb3c5cab19f8dac94af6a5894bca/stdlib/subprocess.pyi

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 62.65%. Comparing base (307e7ab) to head (5b965dc).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #461   +/-   ##
=======================================
  Coverage   62.65%   62.65%           
=======================================
  Files          39       39           
  Lines        3438     3438           
  Branches      927      927           
=======================================
  Hits         2154     2154           
  Misses        764      764           
  Partials      520      520           

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