Windows CI KO until further notice

[Ben Cooksley]

Hi all,

Due to a regression of unknown origin which results in meinproc being
unusable, all Windows builds which are dependent on kdoctools are
currently KO on Windows.

This breakage was introduced sometime shortly after the new builders
became operational (but was working at that time).

Until someone has the time to investigate this, they'll remain broken
i'm afraid.

Regards,
Ben