fix: remove package validation and enable powershell

.github/workflows/publish.yml

@@ -39,7 +39,7 @@ jobs:
       run: dotnet test --no-build --configuration Release --verbosity normal
     - name: Package
       run: dotnet pack --no-build --configuration Release --output ${{ env.NuGetDirectory }}
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       with:
         name: nuget
         if-no-files-found: error
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ build ]
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: nuget
           path: ${{ env.NuGetDirectory }}
@@ -61,13 +61,8 @@ jobs:
         with:
           dotnet-version: 8.0.x
 
-      - name: Install nuget validator
-        run: dotnet tool update Meziantou.Framework.NuGetPackageValidation.Tool --global
-
-      - name: Validate package
-        run: meziantou.validate-nuget-package (Get-ChildItem "${{ env.NuGetDirectory }}/*.nupkg")
-
       - name: Publish NuGet package
+        shell: pwsh
         run: |
           foreach($file in (Get-ChildItem "${{ env.NuGetDirectory }}" -Recurse -Include *.nupkg)) {
               dotnet nuget push $file --api-key "${{ secrets.NUGET_APIKEY }}" --source https://api.nuget.org/v3/index.json --skip-duplicate