message: Fix Add-Path for self-hosted Windows
diff: @@ -88,6 +88,7 @@ Function Add-Path {
  }
  if ($env:GITHUB_PATH) {
  Add-Content $PathItem -Path $env:GITHUB_PATH -Encoding utf8
  + $env:PATH += "$PathItem;"
  } else {
  $newPath = (Get-ItemProperty -Path 'hkcu:\Environment' -Name PATH).Path.replace("$PathItem;", '')
  $newPath = $PathItem + ';' + $newPath
  