ci: try to install zlib from vcpkg

Author: ntamas

.github/workflows/build.yml

@@ -234,7 +234,7 @@ jobs:
       - name: Install VCPKG libraries
         run: |
           %VCPKG_INSTALLATION_ROOT%\vcpkg.exe integrate install
-          %VCPKG_INSTALLATION_ROOT%\vcpkg.exe install liblzma:${{ matrix.vcpkg_arch }}-windows-static-md libxml2:${{ matrix.vcpkg_arch }}-windows-static-md
+          %VCPKG_INSTALLATION_ROOT%\vcpkg.exe install liblzma:${{ matrix.vcpkg_arch }}-windows-static-md libxml2:${{ matrix.vcpkg_arch }}-windows-static-md zlib:${{ matrix.vcpkg_arch }}-windows-static-md
         shell: cmd
 
       - name: Build wheels