Fix Windows build (#418)

bzip.org is down :-/

.jenkins-windows.ps1

@@ -8,6 +8,7 @@ if (-not (Test-Path vcpkg)) {
   git clone https://github.com/Microsoft/vcpkg.git
   cd vcpkg
   git checkout 6984ef0c2ce27e7905f47078e79117c4e02e5ea0 # need to use this until https://github.com/Microsoft/vcpkg/issues/3631 is fixed
+  git cherry-pick 1cb142d62eed89ad430a5dc5875d05508bf27c6a
 
   .\bootstrap-vcpkg.bat; exitonerror $LASTEXITCODE
   .\vcpkg.exe integrate install; exitonerror $LASTEXITCODE