ci: add Windows build

[cbaker6]

New Pull Request Checklist

• I am not disclosing a vulnerability.
• I am creating this PR in reference to an issue.

Issue Description

SDK is capable be being built for Windows, but a windows build currently isn't in the CI.

Related issue: #n/a

Approach

Add windows build to CI

TODOs before merging

• Add tests

[parse-github-assistant]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[cbaker6]

@mtrezza can you add the Windows build to the required builds? Also, can you add "Windows" to the "About" section of this repo?

[codecov]

Codecov Report

Merging #290 (c944f0c) into main (7c53ef3) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #290      +/-   ##
==========================================
+ Coverage   82.44%   82.46%   +0.01%     
==========================================
  Files         104      104              
  Lines       10607    10607              
==========================================
+ Hits         8745     8747       +2     
+ Misses       1862     1860       -2     

Impacted Files	Coverage Δ
Sources/ParseSwift/Objects/ParseUser.swift	80.04% <0.00%> (+0.20%)	⬆️

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