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/test_zyxel.py

@@ -3,12 +3,10 @@ from unittest.mock import MagicMock, patch
 
 import pytest
 import requests
-
 from napalm.base.exceptions import ConnectionException
 
 from napalm_zyxel import ZyxelVMGDriver
 
-
 MOCK_BASIC_INFO = {
     "ModelName": "VMG4005-B50A",
     "SoftwareVersion": "V5.13(ABKS.1)C0",
@@ -117,7 +115,8 @@ class TestZyxelVMGDriver:
             mock_crypto = MagicMock()
             mock_crypto.encrypt_json.return_value = {"content": "ENC", "iv": "IV", "key": ""}
             mock_crypto.decrypt_response.return_value = {
-                "result": "ZCFG_SUCCESS", "sessionkey": "12345"
+                "result": "ZCFG_SUCCESS",
+                "sessionkey": "12345",
             }
             mock_crypto.encrypt_aes_key_with_rsa.return_value = "ENC_KEY"
             mock_crypto_cls.return_value = mock_crypto
@@ -127,12 +126,8 @@ class TestZyxelVMGDriver:
             session.post.return_value = MockResponse(MOCK_LOGIN_RESPONSE)
 
             with patch.object(self.driver, "_session", session, create=False):
-                with patch.object(
-                    self.driver, "_get_rsa_pubkey", return_value=MOCK_RSA_KEY
-                ):
-                    with patch.object(
-                        self.driver, "_get_basic_info", return_value=MOCK_BASIC_INFO
-                    ):
+                with patch.object(self.driver, "_get_rsa_pubkey", return_value=MOCK_RSA_KEY):
+                    with patch.object(self.driver, "_get_basic_info", return_value=MOCK_BASIC_INFO):
                         self.driver._session = None
                         self.driver._crypto = None
                         self.driver._sessionkey = None