style: ruff format and the lint rules of the driver standard

Mechanical: ruff format, and ruff check --fix with the rule set every NAPALM
driver uses (E, F, I, UP, B at line length 100, Python 3.10). What ruff
cannot fix comes in the next commit.

tests/unit/test_ssh_host_key.py

@@ -30,7 +30,9 @@ HANDLER = "napalm_procurve.procurve.ConnectHandler"
 
 def _device() -> MagicMock:
     device = MagicMock()
-    device.remote_conn_pre.get_transport.return_value.get_remote_server_key.return_value = SERVER_KEY
+    device.remote_conn_pre.get_transport.return_value.get_remote_server_key.return_value = (
+        SERVER_KEY
+    )
     device.send_command.return_value = "hostname x"
     return device