skip Windows free-threaded wheel build for now

[davidhewitt]

Skip building the Windows free-threaded wheel for the moment, so that we can ship 0.8.

[codspeed-hq]

CodSpeed Performance Report

Merging #173 will not alter performance

_{Comparing dh/skip-windows-free-threaded (3c1dc21) with main (23568ee)}

Summary

✅ 73 untouched benchmarks

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.74%. Comparing base (23568ee) to head (3c1dc21).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #173   +/-   ##
=======================================
  Coverage   88.74%   88.74%           
=======================================
  Files          13       13           
  Lines        2203     2203           
  Branches     2203     2203           
=======================================
  Hits         1955     1955           
  Misses        153      153           
  Partials       95       95           

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