fix build

Author: trgibeau

.github/workflows/ci.yml

@@ -69,6 +69,7 @@ jobs:
         foreach ($plugin in $dirs.Keys) {
           $sourcePath = $dirs[$plugin]
           $targetPath = "${{ github.workspace }}/drop/Microsoft-Performance-Tools-Linux/MicrosoftPerfToolkitAddins/PTIX"
+          New-Item -ItemType Directory -Force -Path $targetPath
           $pluginManifestPath = "$sourcePath/pluginManifest.json"
 
           if (!(Test-Path $pluginManifestPath)) {