Installer freezes in windows-2022 GitHub Action

[Michele Locati]

> > Program 'setup.exe' failed to run: The specified executable is not a
> > valid application for this OS platform.

> Could newer Windows 11 builds require a a signed executable, or newer manifest
> GUID, version, urn asmv than Win 10:

I don't think the problem is about having a signed executable:
setup-x86_64.exe sometimes starts and sometimes doesn't start on the
same version of Windows (which is Microsoft Windows Server 2022
10.0.20348 Datacenter)

See https://github.com/mlocati/gettext-iconv-windows/actions/runs/11428859634