Enable build parallelism for Windows

[tophyr]

Pull Request Type

• [ ] GitHub Workflow changes
• [ ] Documentation or Wiki changes
• [ ] Build and Dependency changes
• [ ] Runtime changes
  • [ ] Render changes
  • [ ] Audio changes
  • [ ] Input changes
  • [ ] Network changes
  • [ ] Other changes

Description

Related Issues

Screenshots (if applicable)

Checklist

• [ ] I have tested my changes locally and verified that they work as intended.
• [ ] I have documented any new or modified functionality.
• [ ] I have reviewed the changes to ensure they do not introduce any unnecessary complexity or duplicate code.
• [ ] I understand that by submitting this pull request, I am agreeing to license my contributions under the project's license.

Additional Comments

[Lgt2x]

It breaks one of the 2 Windows builds, let's move to Ninja generator if we can

[tophyr]

Closing this; parallel MSBuild apparently causes races in this project. Dunno if that represents a misconfiguration of the project or what.