perf(template): replace all IWR -OutFile with WebClient.DownloadFile (10 occurrences)

template/Setup-WinBuild2025.ps1

@@ -756,8 +756,8 @@ if ($dotnetInstalled) {
 else {
     Write-Host "Downloading dotnet-install.ps1..."
     $dotnetInstallScript = "$env:TEMP\dotnet-install.ps1"
-    Invoke-WebRequest -Uri 'https://dot.net/v1/dotnet-install.ps1' `
-        -OutFile $dotnetInstallScript -UseBasicParsing
+    (New-Object System.Net.WebClient).DownloadFile(
+        'https://dot.net/v1/dotnet-install.ps1', $dotnetInstallScript)
     Assert-Hash -FilePath $dotnetInstallScript -Label 'dotnet-install.ps1' `
                 -Expected $script:Hashes['DotNetInstallScript']
 
@@ -805,7 +805,7 @@ else {
     $pyInstallerUrl  = "https://www.python.org/ftp/python/$PythonVersion/python-$PythonVersion-amd64.exe"
     $pyInstallerPath = 'C:\CI\python_installer.exe'
     Write-Host "Downloading Python $PythonVersion installer..."
-    Invoke-WebRequest -Uri $pyInstallerUrl -OutFile $pyInstallerPath -UseBasicParsing
+    (New-Object System.Net.WebClient).DownloadFile($pyInstallerUrl, $pyInstallerPath)
     Assert-Hash -FilePath $pyInstallerPath -Label "python-$PythonVersion-amd64.exe" `
                 -Expected $script:Hashes['Python']
 
@@ -861,7 +861,7 @@ else {
 
     Write-Host "Downloading VS Build Tools installer..."
     Remove-Item $vsInstallerPath -ErrorAction SilentlyContinue   # remove any stale/corrupt copy
-    Invoke-WebRequest -Uri $vsInstallerUrl -OutFile $vsInstallerPath -UseBasicParsing
+    (New-Object System.Net.WebClient).DownloadFile($vsInstallerUrl, $vsInstallerPath)
     Assert-Hash -FilePath $vsInstallerPath -Label 'vs_buildtools.exe' `
                 -Expected $script:Hashes['VSBuildToolsBootstrapper']
 
@@ -1058,7 +1058,7 @@ if (Test-Path $gitExe) {
 
     Write-Host "Downloading Git for Windows $GitVersion..."
     try {
-        Invoke-WebRequest -Uri $gitUrl -OutFile $gitInstaller -UseBasicParsing
+        (New-Object System.Net.WebClient).DownloadFile($gitUrl, $gitInstaller)
     } catch {
         throw "Failed to download Git from $gitUrl : $_"
     }
@@ -1109,7 +1109,7 @@ if (Test-Path $sevenZipExe) {
 
     Write-Host "Downloading 7-Zip $SevenZipVersion..."
     try {
-        Invoke-WebRequest -Uri $sevenZipUrl -OutFile $sevenZipMsi -UseBasicParsing
+        (New-Object System.Net.WebClient).DownloadFile($sevenZipUrl, $sevenZipMsi)
     } catch {
         throw "Failed to download 7-Zip from $sevenZipUrl : $_"
     }
@@ -1159,7 +1159,7 @@ if (Test-Path $pwsh7Exe) {
     $pwsh7Url = "https://github.com/PowerShell/PowerShell/releases/download/v$Pwsh7Version/PowerShell-$Pwsh7Version-win-x64.msi"
     $pwsh7Msi = 'C:\CI\pwsh_installer.msi'
     Write-Host "Downloading PowerShell $Pwsh7Version from GitHub releases..."
-    try { Invoke-WebRequest -Uri $pwsh7Url -OutFile $pwsh7Msi -UseBasicParsing }
+    try { (New-Object System.Net.WebClient).DownloadFile($pwsh7Url, $pwsh7Msi) }
     catch { throw "Failed to download PowerShell from '$pwsh7Url': $_" }
     Assert-Hash -FilePath $pwsh7Msi -Label "PowerShell-$Pwsh7Version-win-x64.msi" `
                 -Expected $script:Hashes['Pwsh7']
@@ -1265,7 +1265,7 @@ if (Test-Path $ghExe) {
     $ghUrl = "https://github.com/cli/cli/releases/download/v$GhCliVersion/gh_${GhCliVersion}_windows_amd64.msi"
     $ghMsi = 'C:\CI\ghcli_installer.msi'
     Write-Host "Downloading GitHub CLI $GhCliVersion from GitHub releases..."
-    try { Invoke-WebRequest -Uri $ghUrl -OutFile $ghMsi -UseBasicParsing }
+    try { (New-Object System.Net.WebClient).DownloadFile($ghUrl, $ghMsi) }
     catch { throw "Failed to download GitHub CLI from '$ghUrl': $_" }
     Assert-Hash -FilePath $ghMsi -Label "gh_${GhCliVersion}_windows_amd64.msi" `
                 -Expected $script:Hashes['GhCli']
@@ -1316,7 +1316,7 @@ if (Test-Path $cmakeExe) {
     $cmakeUrl = "https://github.com/Kitware/CMake/releases/download/v$CMakeVersion/cmake-$CMakeVersion-windows-x86_64.msi"
     $cmakeMsi = 'C:\CI\cmake_installer.msi'
     Write-Host "Downloading CMake $CMakeVersion from GitHub releases..."
-    try { Invoke-WebRequest -Uri $cmakeUrl -OutFile $cmakeMsi -UseBasicParsing }
+    try { (New-Object System.Net.WebClient).DownloadFile($cmakeUrl, $cmakeMsi) }
     catch { throw "Failed to download CMake from '$cmakeUrl': $_" }
     Assert-Hash -FilePath $cmakeMsi -Label "cmake-$CMakeVersion-windows-x86_64.msi" `
                 -Expected $script:Hashes['CMake']
@@ -1353,7 +1353,7 @@ if (Test-Path $nodeExe) {
     $nodeUrl = "https://nodejs.org/dist/v$NodeJSVersion/node-v$NodeJSVersion-x64.msi"
     $nodeMsi = 'C:\CI\nodejs_installer.msi'
     Write-Host "Downloading Node.js $NodeJSVersion from nodejs.org..."
-    try { Invoke-WebRequest -Uri $nodeUrl -OutFile $nodeMsi -UseBasicParsing }
+    try { (New-Object System.Net.WebClient).DownloadFile($nodeUrl, $nodeMsi) }
     catch { throw "Failed to download Node.js from '$nodeUrl': $_" }
     Assert-Hash -FilePath $nodeMsi -Label "node-v$NodeJSVersion-x64.msi" `
                 -Expected $script:Hashes['NodeJS']
@@ -1425,7 +1425,7 @@ if ((Test-Path $sysDir) -and (Test-Path $sysPsExec)) {
     $sysZipUrl = 'https://download.sysinternals.com/files/SysinternalsSuite.zip'
     $sysZip    = 'C:\CI\sysinternals.zip'
     Write-Host "Downloading Sysinternals Suite from Microsoft CDN..."
-    try { Invoke-WebRequest -Uri $sysZipUrl -OutFile $sysZip -UseBasicParsing }
+    try { (New-Object System.Net.WebClient).DownloadFile($sysZipUrl, $sysZip) }
     catch { throw "Failed to download Sysinternals Suite: $_" }
     if (-not (Test-Path $sysDir)) {
         New-Item -ItemType Directory -Path $sysDir -Force | Out-Null