ci: switch to invoke webrequest

Author: michioxd

.github/workflows/ci.yml

@@ -38,11 +38,15 @@ jobs:
 
       - name: Download WTL and nlohmann/json
         run: |
-          $wc = New-Object System.Net.WebClient
-          $wc.Headers.Add("User-Agent", "Wget/1.21.1")
-          $wc.Headers.Add("Accept", "*/*")
-          $wc.Headers.Add("Connection", "keep-alive")
-          $wc.DownloadFile("https://downloads.sourceforge.net/project/wtl/WTL%2010/WTL%2010.01%20Release/WTL10_01_Release.zip", "${{ runner.temp }}\wtl.zip")
+          $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
           
           New-Item -ItemType Directory -Force -Path "lib\nlohmann"