ci: add pkg-config and nettle on windows

Signed-off-by: Luca Muscariello <muscariello@ieee.org>

Author: muscariello

.github/workflows/ci.yml

@@ -29,8 +29,10 @@ jobs:
         run: |
           $vcpkgRoot = $env:VCPKG_INSTALLATION_ROOT
           if (-not $vcpkgRoot) { $vcpkgRoot = "C:\vcpkg" }
-          & "$vcpkgRoot\vcpkg.exe" install openssl:x64-windows
+          & "$vcpkgRoot\vcpkg.exe" install openssl:x64-windows nettle:x64-windows
+          choco install -y pkgconfiglite
           "OPENSSL_DIR=$vcpkgRoot\installed\x64-windows" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          "PKG_CONFIG_PATH=$vcpkgRoot\installed\x64-windows\lib\pkgconfig" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
       - name: Install Linux dependencies
         if: runner.os == 'Linux'
         run: sudo apt-get update && sudo apt-get install -y pkg-config nettle-dev