Use signing-account-name to fix deprecation warning

Author: daschuer

.github/workflows/build.yml

@@ -340,7 +340,7 @@ jobs:
           azure-client-id: ${{ secrets.AZURE_CLIENT_ID }}
           azure-client-secret: ${{ secrets.AZURE_CLIENT_SECRET }}
           endpoint: https://weu.codesigning.azure.net/
-          trusted-signing-account-name: mixxx
+          signing-account-name: mixxx
           certificate-profile-name: mixxx
           files-folder: build
           files-folder-filter: exe