[MNT] publish using API token

[fkiraly]

This changes the pypi wheels publish credentials from user name and password to skpro specific API token.

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (945966e) 71.67% compared to head (52530d1) 71.67%.
Report is 1 commits behind head on main.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #99   +/-   ##
=======================================
  Coverage   71.67%   71.67%           
=======================================
  Files          93       93           
  Lines        4950     4950           
  Branches      900      900           
=======================================
  Hits         3548     3548           
  Misses       1173     1173           
  Partials      229      229           

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