Merge pull request Azure#14 from SHSongs/main

[keyvault] style: format to f-string samples/backup_restore_operations.py

sdk/keyvault/azure-keyvault-keys/samples/backup_restore_operations.py

@@ -45,7 +45,7 @@
 # if the key already exists in the Key Vault, then a new version of the key is created.
 print("\n.. Create Key")
 key = client.create_key("keyName", "RSA")
-print("Key with name '{0}' created with key type '{1}'".format(key.name, key.key_type))
+print(f"Key with name '{key.name}' created with key type '{key.key_type}'")
 
 # Backups are good to have, if in case keys gets deleted accidentally.
 # For long term storage, it is ideal to write the backup to a file.