windows: show Windows versions supported by curl-for-win

[vszakats]

No description provided.

[vszakats]

I'm not sure if this is a "cover your ass" kind of information, or actually
useful for people downloading. It also creates busywork and/or a risk
to become stale.

I don't know how to tell if Universal CRT is installed on a Vista/7/8.1 Windows.
Neither to estimate how many of these systems may be there without it
and why.

Let me know if you think it is a 👍 or 👎.

[jay]

I do wonder if some people these days even know what Vista is, there are people using Windows only since they switched to numbers. What about a separate section like

curl version: 8.9.1
Build: 8.9.1_1
Date: 2024-07-31
Changes: 8.9.1 changelog
Supported Windows versions: Vista, 7, 8, 10, 11

[vszakats]

@jay I like this, updated the patch.

It needs to be maintained whenever Microsoft release a new version (which would of course never happen after 10! :), but this should be fine.

Do you think it's okay not to mention Universal CRT?