Find a way around sourceforge blocking automated downloads of pkgconfiglite

[HadrienG2]

Without hacking, windows CI is broken by the fact that pkgconfiglite binary releases are hosted on SourceForge and that host is constantly blocking downloads from github CI nodes.

As a stopgap solution, I'm putting a savage mirror of the binaries as an attachment to this issue: pkg-config-lite-0.28-1_bin-win32.zip.

If someone managed to figure out a way to get around SourceForge's download blocus, suggestions are most welcome!