[MNT] CI matrix extended to `windows-latest`

[fkiraly]

This PR extends the CI matrix to windows-latest, for testing windows OS compatibility.

[codecov-commenter]

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Codecov Report

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

Project coverage is 90.19%. Comparing base (4df80af) to head (9d8ea0f). Report is 1 commits behind head on master.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1622   +/-   ##
=======================================
  Coverage   90.19%   90.19%           
=======================================
  Files          30       30           
  Lines        4724     4724           
=======================================
  Hits         4261     4261           
  Misses        463      463           

Flag	Coverage Δ
cpu	90.19% <ø> (ø)
pytest	90.19% <ø> (ø)

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