fix(ci): filter out snupkg files from push to avoid 400 error

Author: JusterZhu

.github/workflows/dotnet-ci.yaml

@@ -66,7 +66,7 @@ jobs:
         continue-on-error: true  # 即便推送失败也继续创建GitHub Release
         run: |
           $apiKey = '${{ steps.login.outputs.NUGET_API_KEY }}'
-          $nupkgs = Get-ChildItem ./nupkgs/*.nupkg
+          $nupkgs = Get-ChildItem ./nupkgs/*.nupkg | Where-Object { $_.Name -notlike '*.snupkg' }
           foreach ($nupkg in $nupkgs) {
             Write-Host "推送 $($nupkg.Name)..."
             dotnet nuget push $nupkg.FullName `