ci: clone wtl directly

Author: michioxd

.github/workflows/ci.yml

@@ -38,16 +38,7 @@ jobs:
 
       - name: Download WTL and nlohmann/json
         run: |
-          $ProgressPreference = 'SilentlyContinue'
-          $headers = @{
-            "User-Agent" = "Wget/1.21.1"
-            "Accept"     = "*/*"
-          }
-          Invoke-WebRequest `
-            -Uri "https://sourceforge.net/projects/wtl/files/WTL%2010/WTL%2010.01%20Release/WTL10_01_Release.zip/download" `
-            -Headers $headers `
-            -OutFile "${{ runner.temp }}\wtl.zip"
-          7z x "${{ runner.temp }}\wtl.zip" -o"lib\WTL" > nul
+          git clone https://git.code.sf.net/p/wtl/git lib\WTL
           
           New-Item -ItemType Directory -Force -Path "lib\nlohmann"
           (New-Object System.Net.WebClient).DownloadFile("https://github.com/nlohmann/json/releases/download/v3.12.0/json.hpp", "lib\nlohmann\json.hpp")