CI: Add symbol prefix checking for Windows.

[briansmith]

[codecov[bot]]

Codecov Report

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

Project coverage is 97.07%. Comparing base (9593d9b) to head (010bc3b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1911   +/-   ##
=======================================
  Coverage   97.07%   97.07%           
=======================================
  Files         144      144           
  Lines       20124    20124           
  Branches      456      456           
=======================================
+ Hits        19535    19536    +1     
  Misses        492      492           
+ Partials       97       96    -1     

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