ci: use npm prefix for windows PATH

Author: mldangelo

.github/workflows/test.yml

@@ -93,7 +93,11 @@ jobs:
       - name: Add npm global bin to PATH (Windows)
         if: matrix.os == 'windows-latest'
         run: |
-          $globalBin = npm bin -g
+          $globalPrefix = (npm config get prefix).Trim()
+          if (-not $globalPrefix) {
+            $globalPrefix = Join-Path $env:APPDATA "npm"
+          }
+          $globalBin = $globalPrefix
           $globalBin | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
 
       - uses: astral-sh/setup-uv@v7