Update build-and-sign.yml

Author: clairernovotny

.github/workflows/build-and-sign.yml

@@ -60,6 +60,7 @@ jobs:
     - name: 'Az CLI login'
       uses: azure/login@v1
       with:
+        allow-no-subscriptions: true
         client-id: ${{ secrets.AZURE_CLIENT_ID }}
         tenant-id: ${{ secrets.AZURE_TENANT_ID }}
         subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}