Fix the problem of prompting when downloading git with fetch command

[jimwang118]

Fixes microsoft/vcpkg#43368

[BillyONeal]

I don't think we should ever be guessing the version from the file name of the downloaded file like this; instead the schema should be changed to distinguish between minimum acceptable version and 'the version in the download'. The easiest way to do that is probably to add 'minimum-version' because the 'version' field is referred to all over the place, such as in these messages.

[jimwang118]

I don't think we should ever be guessing the version from the file name of the downloaded file like this; instead the schema should be changed to distinguish between minimum acceptable version and 'the version in the download'. The easiest way to do that is probably to add 'minimum-version' because the 'version' field is referred to all over the place, such as in these messages.

Should we add a field to record the downloaded version number ?