fix signing

Author: dotMorten

.github/workflows/publish_winuiex_nuget.yml

@@ -38,6 +38,7 @@ jobs:
         client-id: ${{ secrets.AZURE_CLIENT_ID }}
         tenant-id: ${{ secrets.AZURE_TENANT_ID }}
         subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+        allow-no-subscriptions: true
 
     - name: Install Sign CLI
       run: |