fix: publish beta packages to nuget

Author: corstian

.github/workflows/CI.yml

@@ -43,5 +43,5 @@ jobs:
       run: dotnet test /property:Configuration=Release --no-restore --no-build --verbosity normal
 
     - name: Publish
-      if: startsWith(github.ref, 'refs/heads/main')
+      if: startsWith(github.ref, 'refs/heads/main') || startsWith(github.ref, 'refs/heads/beta')
       run: dotnet nuget push **\*.nupkg --source 'https://api.nuget.org/v3/index.json' --api-key ${{secrets.NUGET_API_KEY}} --skip-duplicate