fix push nuget step

Author: jetersen

.github/workflows/ci.yml

@@ -50,10 +50,9 @@ jobs:
 
       - name: Push NuGet
         if: |
-          startsWith(github.event.ref, 'refs/tags/')
-          || endsWith(github.event.ref, '/master')
+          github.event.action == 'published'
         shell: pwsh
-        run: dotnet nuget push **/*.nupkg --source $Env:SOURCE --api-key $Env:TOKEN
+        run: dotnet nuget push **/*.nupkg --source $Env:SOURCE --api-key $Env:TOKEN --skip-duplicate
         env:
           SOURCE: 'https://api.nuget.org/v3/index.json'
           TOKEN: ${{ secrets.NUGET_API_KEY }}