fix worflow error

Author: jaredfholgate

.github/workflows/PullRequest.yml

@@ -32,7 +32,7 @@ jobs:
         shell: pwsh
         run: Invoke-Build -File .\src\ALZ.build.ps1
       - name: Upload pester results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: pester-results
           path: .\src\Artifacts\testOutput